research paper over death penalty

March 19, 2024

Evidence Does Not Support the Use of the Death Penalty

Capital punishment must come to an end. It does not deter crime, is not humane and has no moral or medical basis

By The Editors

A death penalty vigil, held in 2021 outside an Indiana penitentiary.

Bryan Woolston/Reuters/Redux

It is long past time to abolish the death penalty in the U.S.

Capital punishment was halted in the U.S. in 1972 but reinstated in 1976, and since then, nearly 1,600 people have been executed. To whose gain? Study after study shows that the death penalty does not deter crime, puts innocent people to death , is racially biased , and is cruel and inhumane. It is state-sanctioned homicide, wholly ineffective, often botched, and a much more expensive punishment than life imprisonment. There is no ethical, scientifically supported, medically acceptable or morally justifiable way to carry it out.

The recent execution of Kenneth Eugene Smith demonstrates this barbarity. After a failed attempt at lethal injection by prison officials seemingly inexperienced in the placement of an IV, the state of Alabama killed Smith in January using nitrogen gas . The Alabama attorney general claimed that this method of execution was fast and humane , despite no supporting evidence. Eyewitnesses recounted that Smith thrashed during the nitrogen administration and took more than 20 minutes to die.

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Opposition to the death penalty is growing among the American public , and the Biden administration must follow through on its promise to end this horror. The Department of Justice must heed its own admission that the death penalty doesn’t stop crime, and our legislators must continue to take up the issue on the congressional floor. The few states that still condemn people to death must follow the lead of states that have considered the evidence and rejected capital punishment.

Programs such as the Innocence Project have shown, over and over, that innocent people have been sentenced to death. Since 1973 nearly 200 people on death row have been exonerated, based on appeals, the reopening of cases, and the entrance of new and sometimes previously suppressed evidence. People have recanted testimony, and supposedly airtight cases have been poked full of evidentiary holes.

Through the death penalty, the criminal justice system has killed at least 20 people now believed to have been innocent and uncounted others whose cases have not been reexamined . Too many of these victims have been Black or Hispanic. This is not justice. These are state-sanctioned hate crimes.

Using rigorous statistical and experimental control methods, both economics and criminal justice studies have consistently found that there is no evidence for deterrence of violent crimes in states that allow capital punishment. One such study, a 2009 paper by criminology researchers at the University of Dallas, outlines experimental and statistical flaws in econometrics-based death penalty studies that claim to find a correlated reduction in violent crime. The death penalty does not stop people from killing. Executions don’t make us safer.

The methods used to kill prisoners are inhumane. Electrocution fails , causing significant pain and suffering. Joel Zivot, an anesthesiologist who criticizes the use of medicines in carrying out the death penalty, has found (at the request of lawyers of death row inmates) that the lungs of prisoners who were killed by lethal injection were often heavy with fluid and froth that suggested they were struggling to breathe and felt like they were drowning. Nitrogen gas is used in some veterinary euthanasia, but based in part on the behavior of rats in its presence, it is “unacceptable” for mammals , according to the American Veterinary Medical Association. This means that Smith, as his lawyers claimed in efforts to stop his execution, became a human subject in an immoral experiment.

Courts have often decided, against the abundant evidence, that these killings are constitutional and do not fall under the “cruel and unusual punishment” clause of the 8th Amendment or, in Smith’s appeal , both the 8th Amendment and the due process protection clause of the 14th amendment.

A small number of prosecutors and judges in a few states, mostly in the South, are responsible for most of the death sentences being handed down in the U.S. today. It’s a power they should not be able to wield. Smith was sentenced to life in prison by a jury before the judge in his case overruled the jury and gave him the death sentence.

A furious urge for vengeance against those who have done wrong—or those we think have done wrong—is the biggest motivation for the death penalty. But this desire for violent retribution is the very impulse that our criminal justice system is made to check, not abet. Elected officials need to reform this aspect of our justice system at both the state and federal levels. Capital punishment does not stop crime and mocks both justice and humanity. The death penalty in the U.S. must come to an end.

This is an opinion and analysis article, and the views expressed by the author or authors are not necessarily those of Scientific American .

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Criminological Research and the Death Penalty: Has Research by Criminologists Impacted Capital Punishment Practices?

• Published: 16 April 2019
• Volume 44 , pages 536–580, ( 2019 )

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• Gordon P. Waldo 1 &
• Wesley Myers 1  

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At the request of the SCJA president this paper addresses five questions. Does criminological research make a difference relative to the death penalty? - If criminological research does make a difference, what is the nature of that difference? - What specific instances can one cite of research findings influencing death penalty policy decisions? Why hasn’t our research made more of a difference? What can we do, either in terms of directing our research or in terms of disseminating it, to facilitate it making a difference? Specific examples of research directly impacting policy are examined. The evidence presented suggests that research on capital punishment has had some impact on policy, but not nearly enough. There is still a high level of ignorance that has limited the impact of criminological research on death penalty policy. The proposed solution is to improve the education of the general public and decision makers in order to increase the impact of criminological research on capital punishment policy.

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Public Sector Criminological Research

Effective Probation in England and Wales? The Rise and Fall of Evidence

Making a Difference in Criminology: Past, Present, and Future

Thomas G. Blomberg

One of the most interesting things the senior author learned in his first statistics class as an undergraduate, which became much clearer when he took his first graduate research methods class, was that if a correlation exists between two variables it does not automatically mean that one of the variables caused the other variable. This is true even if the one that appeared to be the cause (independent variable) met the first criteria for causation and occurred prior to the presumed effect (dependent variable). As he began to teach the first research methods course ever taught in the Criminology Program at Florida State University he also learned about extraneous variables, intervening variables, component variables, antecedent variables, suppressor variables, distorter variables, spurious non-correlations, conditional relationships, conjoint influence, etc. (Rosenberg, 1968 ). These different types of variables will not be discussed, but their existence has relevance in trying to answer the questions posed to the panelists. Instead, reference will be made to ‘direct’ and ‘indirect’ influences in this paper because each can be important in bringing about change.

Two other methods the courts have used in this regard is the number of states that have made a significant change in their death penalty statutes, such as the number of states changing the age for execution of juveniles (Thompson v. Oklahoma, 1988 ) . Another method the United States Supreme Court has used is international opinions. “It is proper that we acknowledge the overwhelming weight of international opinion …. The opinion of the world community, while not controlling our outcome, does provide respected and significant confirmation for our own conclusions” (Roper v. Simmons, 2005 p.11).

Warden describes the first exoneration as follows. “The first of what would become a cavalcade of post-Furman Illinois death row exonerations occurred in 1987 when a young prosecutor, Michael Falconer, came forward with exculpatory evidence that exonerated two condemned Chicagoans, Perry Cobb and Darby Tillis. It is hard to imagine more fortuitous or improbable events than those that led to the exonerations of Cobb and Tillis, who had been sentenced to death for a double murder that occurred a decade earlier.’ In 1983, the Illinois Supreme Court reversed and remanded their case because the trial judge had rejected a defense request to give the jury an accomplice instruction. The prosecution’s star witness, Phyllis Santini, had driven the getaway car used in the crime - admittedly but, she claimed, unwittingly. Chicago Lawyer , an investigative publication … carried a detailed article based on the Illinois Supreme Court opinion and case file. As luck would have it, Falconer, who recently had graduated from law school, read the article, which discussed Santini’s testimony in some depth. Years earlier, Falconer had worked with Santini at a factory and, as he would testify, she had told him that her boyfriend had committed a murder and that she and the boyfriend were working with police and prosecutors to pin it on someone else. “I thought to myself, ‘Jeez, there’s a name from the past,”‘Falconer reflected in a Chicago Lawyer interview. “I read on and started thinking, ‘Holy shit, this is terrible.”‘He called a defense lawyer mentioned in the article, reporting what Santini had told him. At an ensuing bench trial in 1987, Cobb and Tillis were acquitted by a directed verdict on the strength of Falconer’s testimony.” By then, Falconer was a prosecutor in a neighboring jurisdiction.” Cobb and Tillis eventually received gubernatorial pardons based on innocence. As serendipitous as the Cobb and Tillis exonerations” were, they were no more so than many that would follow. … (there were) 20 Illinois death row exonerations -each involving odds-defying fortuity. The error rate among 305 convictions under the 1977 Illinois capital punishment statute was in excess of 6% (Warden, 2012 p. 247–248).

Justice Marshall was careful to fully support his position surrounding the lack of a deterrent effect of the death penalty with two lengthy ‘laundry lists’ of research in the footnotes of his published opinion which are abbreviated here. “See, e. g., Jon Peck, The Deterrent Effect of Capital Punishment: Ehrlich and His Critics, 85 Yale L. J. 359 (1976); David Baldus & James Cole, A Comparison of the Work of Thorsten Sellin and Isaac Ehrlich on the Deterrent Effect of Capital Punishment, 85 Yale L. J. 170 (1975); William Bowers & Glenn Pierce, The Illusion of Deterrence in Isaac Ehrlich’s Research on Capital Punishment, 85 Yale L. J. 187 (1975); Issac Ehrlich. The Deterrent Effect of Capital Punishment: A Question of Life and Death, 65 Am. Econ. Rev. 397 (June 1975); Hook, The Death Sentence, in The Death Penalty in America 146 (Hugo Adam Bedau ed. 1967); Thurston Sellin, The Death Penalty, A Report for the Model Penal Code Project of the American Law Institute (1959).” And “See Passell & Taylor, The Deterrent Effect of Capital Punishment: Another View (unpublished Columbia University Discussion Paper 74–7509, Mar. 1975), reproduced in Brief for Petitioner App. E in Jurek v. Texas, O. T. 1975, No. 75–5844; Passell, The Deterrent Effect of the Death Penalty: A Statistical Test, 28 Stan. L. Rev. 61 (1975); Baldus & Cole, A Comparison of the Work of Thorsten Sellin & Isaac Ehrlich on the Deterrent Effect of Capital Punishment, 85 Yale L. J. 170 (1975); Bowers & Pierce, The Illusion of Deterrence in Isaac Ehrlich’s Research on Capital Punishment, 85 Yale L. J. 187 (1975); Peck, The Deterrent Effect of Capital Punishment: Ehrlich and His Critics, 85 Yale L. J. 359 (1976). See also Ehrlich, Deterrence: Evidence and Inference, 85 Yale L. J. 209 (1975); Ehrlich, Rejoinder, 85 Yale L. J. 368 (1976)… See also Bailey, Murder and Capital Punishment: Some Further Evidence, 45 Am. J. Orthopsychiatry 669 (1975); W. Bowers, Executions in America 121–163 (1974).”

This only happened once with a legislator who was in favor of the death penalty and opposed to abortion. I later learned from other lobbyist’s that he was known as a ‘weird duck’ and they tried to stay away from him. Fortunately, he is no longer in the legislature.

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Waldo, G. P., & Chiricos, T. G. (1977). Work release and recidivism: An empirical evaluation of a social policy. Evaluation Quarterly, 1(1), 87–108. https://doi.org/10.1177/0193841X7700100104 .

Wanger, E. G. (2017). Fighting the death penalty . East Lansing, MI: Michigan State University Press.

Warden, R. (2012). How and why Illinois abolished the death penalty. Law and Inequality, 30 (2), 244–286.

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Waldo, G.P., Myers, W. Criminological Research and the Death Penalty: Has Research by Criminologists Impacted Capital Punishment Practices?. Am J Crim Just 44 , 536–580 (2019). https://doi.org/10.1007/s12103-019-09478-4

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The research on capital punishment: Recent scholarship and unresolved questions

2014 review of research on capital punishment, including studies that attempt to quantify rates of innocence and the potential deterrence effect on crime.

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by Alexandra Raphel and John Wihbey, The Journalist's Resource January 5, 2015

This <a target="_blank" href="https://journalistsresource.org/criminal-justice/research-capital-punishment-key-recent-studies/">article</a> first appeared on <a target="_blank" href="https://journalistsresource.org">The Journalist's Resource</a> and is republished here under a Creative Commons license.<img src="https://journalistsresource.org/wp-content/uploads/2020/11/cropped-jr-favicon-150x150.png" style="width:1em;height:1em;margin-left:10px;">

Over the past year the death penalty has again come into focus as a major public policy and political issue, catalyzed by several high-profile events.

The botched execution of convicted murderer and rapist Clayton Lockett in Oklahoma in 2014 was seen as a potential turning point in the debate, bringing increased attention to the mechanisms by which persons are executed. That was followed by a number of other closely scrutinized cases, and the year ended with few executions relative to years past. On December 31, 2014, Maryland Gov. Martin O’Malley commuted the sentences of the remaining four prisoners on death row in that state. In 2013, Maryland became the 18th state to abolish the death penalty after Connecticut in 2012 and New Mexico in 2009.

Meanwhile, polling data suggests some softening of public attitudes, though the majority Americans continue to support capital punishment. Gallop noted in October 2014 that the level of public support (60%) is at its lowest in 40 years. A Washington Post -ABC News poll in mid-2014 found that more Americans support life sentences, rather than the death penalty, for convicted murderers. Further, recent polls from the Pew Research Center indicate that only a bare majority of Americans now support capital punishment, 55%, down from 78% in 1996.

Scholarly research sheds light on a number of important aspects of this issue:

False convictions

One key reason for the contentious debate is the concern that states are executing innocent people. How many people are unjustly facing the death penalty? By definition, it is difficult to obtain a reliable answer to this question. Presumably if judges, juries, and law enforcement were always able to conclusively determine who was innocent, those defendants would simply not be convicted in the first place. When capital punishment is the sentence, however, this issue takes on new importance.

Some believe that when it comes to death-penalty cases, this is not a huge cause for concern. In his concurrent opinion in the 2006 Supreme Court case Kansas v. Marsh , Justice Antonin Scalia suggested that the execution error rate was minimal, around 0.027%. However, a 2014 study in the Proceedings of the National Academy of Sciences suggests that the figure could be higher. Authors Samuel Gross (University of Michigan Law School), Barbara O’Brien (Michigan State University College of Law), Chen Hu (American College of Radiology) and Edward H. Kennedy (University of Pennsylvania School of Medicine) examine data from the Bureau of Justice Statistics and the Department of Justice relating to exonerations from 1973 to 2004 in an attempt to estimate the rate of false convictions among death row defendants. (Determining innocence with full certainty is an obvious challenge, so as a proxy they use exoneration — “an official determination that a convicted defendant is no longer legally culpable for the crime.”) In short, the researchers ask: If all death row prisoners were to remain under this sentence indefinitely, how many of them would have eventually been found innocent (exonerated)?

Interestingly, the authors also note that advances in DNA identification technology are unlikely to have a large impact on false conviction rates because DNA evidence is most often used in cases of rape rather than homicide. To date, only about 13% of death row exonerations were the result of DNA testing. The Innocence Project , a litigation and public policy organization founded in 1992, has been deeply involved in many such cases.

Death penalty deterrence effects: What do we know?

A chief way proponents of capital punishment defend the practice is the idea that the death penalty deters other people from committing future crimes. For example, research conducted by John J. Donohue III (Yale Law School) and Justin Wolfers (University of Pennsylvania) applies economic theory to the issue: If people act as rational maximizers of their profits or well-being, perhaps there is reason to believe that the most severe of punishments would serve as a deterrent. (The findings of their 2009 study on this issue, “Estimating the Impact of the Death Penalty on Murder,” are inconclusive.) In contrast, one could also imagine a scenario in which capital punishment leads to an increased homicide rate because of a broader perception that the state devalues human life. It could also be possible that the death penalty has no effect at all because information about executions is not diffused in a way that influences future behavior.

In 1978 — two years after the Supreme Court issued its decision reversing a previous ban on the death penalty ( Gregg v. Georgia ) — the National Research Council (NRC) published a comprehensive review of the current research on capital punishment to determine whether one of these hypotheses was more empirically supported than the others. The NRC concluded that “available studies provide no useful evidence on the deterrent effect of capital punishment.”

Researchers have subsequently used a number of methods in an effort to get closer to an accurate estimate of the deterrence effect of the death penalty. Many of the studies have reached conflicting conclusions, however. To conduct an updated review, the NRC formed the Committee on Deterrence and the Death Penalty, comprised of academics from economics departments and public policy schools from institutions around the country, including the Carnegie Mellon University, University of Chicago and Duke University.

In 2012, the Committee published an updated report that concluded that not much had changed in recent decades: “Research conducted in the 30 years since the earlier NRC report has not sufficiently advanced knowledge to allow a conclusion, however qualified, about the effect of the death penalty on homicide rates.” The report goes on to recommend that none of the reviewed reports be used to influence public policy decisions on the death penalty.

Why has the research not been able to provide any definitive answers about the impact of the death penalty? One general challenge is that when it comes to capital punishment, a counter-factual policy is simply not observable. You cannot simultaneously execute and not execute defendants, making it difficult to isolate the impact of the death penalty. The Committee also highlights a number of key flaws in the research designs:

• There are both capital and non-capital punishment options for people charged with serious crimes. So, the relevant question on the deterrent effect of capital punishment specifically “is the differential deterrent effect of execution in comparison with the deterrent effect of other available or commonly used penalties.” None of the studies reviewed by the Committee took into account these severe, but noncapital punishments, which could also have an effect on future behaviors and could confound the estimated deterrence effect of capital punishment.
• “They use incomplete or implausible models of potential murderers’ perceptions of and response to the capital punishment component of a sanction regime”
• “The existing studies use strong and unverifiable assumptions to identify the effects of capital punishment on homicides.”

In a 2012 study, “Deterrence and the Dealth Penalty: Partial Identificaiton Analysis Using Repeated Cross Sections,” authors Charles F. Manski (Northwestern University) and John V. Pepper (University of Virginia) focus on the third challenge. They note: “Data alone cannot reveal what the homicide rate in a state without (with) a death penalty would have been had the state (not) adopted a death penalty statute. Here, as always when analyzing treatment response, data must be combined with assumptions to enable inference on counterfactual outcomes.”

However, even though the authors do not arrive at a definitive conclusion, the National Research Council Committee notes that this type of research holds some value: “Rather than imposing the strong but unsupported assumptions required to identify the effect of capital punishment on homicides in a single model or an ad hoc set of similar models, approaches that explicitly account for model uncertainty may provide a constructive way for research to provide credible albeit incomplete answers.”

Another strategy researchers have taken is to limit the focus of studies on potential short-term effects of the death penalty. In a 2009 paper, “The Short-Term Effects of Executions on Homicides: Deterrence, Displacement, or Both?” authors Kenneth C. Land and Hui Zheng of Duke University, along with Raymond Teske Jr. of Sam Houston State University, examine monthly execution data (1980-2005) from Texas, “a state that has used the death penalty with sufficient frequency to make possible relatively stable estimates of the homicide response to executions.” They conclude that “evidence exists of modest, short-term reductions in the numbers of homicides in Texas in the months of or after executions.” Depending on which model they use, these deterrent effects range from 1.6 to 2.5 homicides.

The NRC’s Committee on Deterrence and the Death Penalty commented on the findings, explaining: “Land, Teske and Zheng (2009) should be commended for distinguishing between periods in Texas when the use of capital punishment appears to have been erratic and when it appears to have been systematic. But they fail to integrate this distinction into a coherently delineated behavioral model that incorporates sanctions regimes, salience, and deterrence. And, as explained above, their claims of evidence of deterrence in the systematic regime are flawed.”

A more recent paper (2012) from the three authors, “The Differential Short-Term Impacts of Executions on Felony and Non-Felony Homicides,” addresses some of these concerns. Published in Criminology and Public Policy , the paper reviews and updates some of their earlier findings by exploring “what information can be gained by disaggregating the homicide data into those homicides committed in the course of another felony crime, which are subject to capital punishment, and those committed otherwise.” The results produce a number of different findings and models, including that “the short-lived deterrence effect of executions is concentrated among non-felony-type homicides.”

Other factors to consider

The question of what kinds of “mitigating” factors should prevent the criminal justice system from moving forward with an execution remains hotly disputed. A 2014 paper published in the Hastings Law Journal , “The Failure of Mitigation?” by scholars at the University of North Carolina and DePaul University, investigates recent executions of persons with possible mental or intellectual disabilities. The authors reviewed 100 cases and conclude that the “overwhelming majority of executed offenders suffered from intellectual impairments, were barely into adulthood, wrestled with severe mental illness, or endured profound childhood trauma.”

Two significant recommendations for reforming the existing process also are supported by some academic research. A 2010 study by Pepperdine University School of Law published in Temple Law Review , “Unpredictable Doom and Lethal Injustice: An Argument for Greater Transparency in Death Penalty Decisions,” surveyed the decision-making process among various state prosecutors. At the request of a state commission, the authors first surveyed California district attorneys; they also examined data from the other 36 states that have the death penalty. The authors found that prosecutors’ capital punishment filing decisions remain marked by local “idiosyncrasies,” meaning that “the very types of unfairness that the Supreme Court sought to eliminate” beginning in 1972 may still “infect capital cases.” They encourage “requiring prosecutors to adhere to an established set of guidelines.” Finally, there has been growing support for taping interrogations of suspects in capital cases, so as to guard against the phenomenon of false confessions .

Related reading: For an international perspective on capital punishment, see Amnesty International’s 2013 report ; for more information on the evolution of U.S. public opinion on the death penalty, see historical trends from Gallup .

Keywords: crime, prisons, death penalty, capital punishment

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One of the most popular topics for an argument essay is the death penalty . When researching a topic for an argumentative essay , accuracy is important, which means the quality of your sources is important.

If you're writing a paper about the death penalty, you can start with this list of sources, which provide arguments for all sides of the topic.

Amnesty International Site

Amnesty International views the death penalty as "the ultimate, irreversible denial of human rights." This website provides a gold mine of statistics and the latest breaking news on the subject.

Mental Illness on Death Row

Death Penalty Focus is an organization that aims to bring about the abolition of capital punishment and is a great resource for information. You will find evidence that many of the people executed over the past decades are affected by a form of mental illness or disability.

Pros and Cons of the Death Penalty

This extensive article provides an overview of arguments for and against the death penalty and offers a history of notable events that have shaped the discourse for activists and proponents.

Pro-Death Penalty Links

This page comes from ProDeathPenalty and contains a state-by-state guide to capital punishment resources. You'll also find a list of papers written by students on topics related to capital punishment. 

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Most americans favor the death penalty despite concerns about its administration, 78% say there is some risk of innocent people being put to death.

Pew Research Center conducted this study to better understand Americans’ views about the death penalty. For this analysis, we surveyed 5,109 U.S. adults from April 5 to 11, 2021. Everyone who took part in this survey is a member of the Center’s American Trends Panel (ATP), an online survey panel that is recruited through national, random sampling of residential addresses. This way nearly all U.S. adults have a chance of selection. The survey is weighted to be representative of the U.S. adult population by gender, race, ethnicity, partisan affiliation, education and other categories. Read more about the ATP’s methodology .

Here are the questions used for the report, along with responses, and its methodology .

The use of the death penalty is gradually disappearing in the United States. Last year, in part because of the coronavirus outbreak, fewer people were executed than in any year in nearly three decades .

Yet the death penalty for people convicted of murder continues to draw support from a majority of Americans despite widespread doubts about its administration, fairness and whether it deters serious crimes.

More Americans favor than oppose the death penalty: 60% of U.S. adults favor the death penalty for people convicted of murder, including 27% who strongly favor it. About four-in-ten (39%) oppose the death penalty, with 15% strongly opposed, according to a new Pew Research Center survey.

The survey, conducted April 5-11 among 5,109 U.S. adults on the Center’s American Trends Panel, finds that support for the death penalty is 5 percentage points lower than it was in August 2020, when 65% said they favored the death penalty for people convicted of murder.

While public support for the death penalty has changed only modestly in recent years, support for the death penalty declined substantially between the late 1990s and the 2010s. (See “Death penalty draws more Americans’ support online than in telephone surveys” for more on long-term measures and the challenge of comparing views across different survey modes.)

Large shares of Americans express concerns over how the death penalty is administered and are skeptical about whether it deters people from committing serious crimes.

Nearly eight-in-ten (78%) say there is some risk that an innocent person will be put to death, while only 21% think there are adequate safeguards in place to prevent that from happening. Only 30% of death penalty supporters – and just 6% of opponents – say adequate safeguards exist to prevent innocent people from being executed.

A majority of Americans (56%) say Black people are more likely than White people to be sentenced to the death penalty for being convicted of serious crimes. This view is particularly widespread among Black adults: 85% of Black adults say Black people are more likely than Whites to receive the death penalty for being convicted of similar crimes (61% of Hispanic adults and 49% of White adults say this).

Moreover, more than six-in-ten Americans (63%), including about half of death penalty supporters (48%), say the death penalty does not deter people from committing serious crimes.

Yet support for the death penalty is strongly associated with a belief that when someone commits murder, the death penalty is morally justified. Among the public overall, 64% say the death penalty is morally justified in cases of murder, while 33% say it is not justified. An overwhelming share of death penalty supporters (90%) say it is morally justified under such circumstances, compared with 25% of death penalty opponents.

The data in the most recent survey, collected from Pew Research Center’s online American Trends Panel (ATP) , finds that 60% of Americans favor the death penalty for persons convicted of murder. Over four ATP surveys conducted since September 2019, there have been relatively modest shifts in these views – from a low of 60% seen in the most recent survey to a high of 65% seen in September 2019 and August 2020.

In Pew Research Center phone surveys conducted between September 2019 and August 2020 (with field periods nearly identical to the online surveys), support for the death penalty was significantly lower: 55% favored the death penalty in September 2019, 53% in January 2020 and 52% in August 2020. The consistency of this difference points to substantial mode effects on this question. As a result, survey results from recent online surveys are not directly comparable with past years’ telephone survey trends. A post accompanying this report provides further detail and analysis of the mode differences seen on this question. And for more on mode effects and the transition from telephone surveys to online panel surveys, see “What our transition to online polling means for decades of phone survey trends” and “Trends are a cornerstone of public opinion research. How do we continue to track changes in public opinion when there’s a shift in survey mode?”

Partisanship continues to be a major factor in support for the death penalty and opinions about its administration. Just over three-quarters of Republicans and independents who lean toward the Republican Party (77%) say they favor the death penalty for persons convicted of murder, including 40% who strongly favor it.

Democrats and Democratic leaners are more divided on this issue: 46% favor the death penalty, while 53% are opposed. About a quarter of Democrats (23%) strongly oppose the death penalty, compared with 17% who strongly favor it.

Over the past two years, the share of Republicans who say they favor the death penalty for persons convicted of murder has decreased slightly – by 7 percentage points – while the share of Democrats who say this is essentially unchanged (46% today vs. 49% in 2019).

Republicans and Democrats also differ over whether the death penalty is morally justified, whether it acts as a deterrent to serious crime and whether adequate safeguards exist to ensure that no innocent person is put to death. Republicans are 29 percentage points more likely than Democrats to say the death penalty is morally justified, 28 points more likely to say it deters serious crimes, and 19 points more likely to say that adequate safeguards exist.

But the widest partisan divide – wider than differences in opinions about the death penalty itself – is over whether White people and Black people are equally likely to be sentenced to the death penalty for committing similar crimes.

About seven-in-ten Republicans (72%) say that White people and Black people are equally likely to be sentenced to death for the same types of crimes. Only 15% of Democrats say this. More than eight-in-ten Democrats (83%) instead say that Black people are more likely than White people to be sentenced to the death penalty for committing similar crimes.

Differing views of death penalty by race and ethnicity, education, ideology

There are wide ideological differences within both parties on this issue. Among Democrats, a 55% majority of conservatives and moderates favor the death penalty, a position held by just 36% of liberal Democrats (64% of liberal Democrats oppose the death penalty). A third of liberal Democrats strongly oppose the death penalty, compared with just 14% of conservatives and moderates.

While conservative Republicans are more likely to express support for the death penalty than moderate and liberal Republicans, clear majorities of both groups favor the death penalty (82% of conservative Republicans and 68% of moderate and liberal Republicans).

As in the past, support for the death penalty differs across racial and ethnic groups. Majorities of White (63%), Asian (63%) and Hispanic adults (56%) favor the death penalty for persons convicted of murder. Black adults are evenly divided: 49% favor the death penalty, while an identical share oppose it.

Support for the death penalty also varies across age groups. About half of those ages 18 to 29 (51%) favor the death penalty, compared with about six-in-ten adults ages 30 to 49 (58%) and those 65 and older (60%). Adults ages 50 to 64 are most supportive of the death penalty, with 69% in favor.

There are differences in attitudes by education, as well. Nearly seven-in-ten adults (68%) who have not attended college favor the death penalty, as do 63% of those who have some college experience but no degree.

About half of those with four-year undergraduate degrees but no postgraduate experience (49%) support the death penalty. Among those with postgraduate degrees, a larger share say they oppose (55%) than favor (44%) the death penalty.

The divide in support for the death penalty between those with and without college degrees is seen across racial and ethnic groups, though the size of this gap varies. A large majority of White adults without college degrees (72%) favor the death penalty, compared with about half (47%) of White adults who have degrees. Among Black adults, 53% of those without college degrees favor the death penalty, compared with 34% of those with college degrees. And while a majority of Hispanic adults without college degrees (58%) say they favor the death penalty, a smaller share (47%) of those with college degrees say this.

Intraparty differences in support for the death penalty

Republicans are consistently more likely than Democrats to favor the death penalty, though there are divisions within each party by age as well as by race and ethnicity.

Republicans ages 18 to 34 are less likely than other Republicans to say they favor the death penalty. Just over six-in-ten Republicans in this age group (64%) say this, compared with about eight-in-ten Republicans ages 35 and older.

Among Democrats, adults ages 50 to 64 are much more likely than adults in other age groups to favor the death penalty. A 58% majority of 50- to 64-year-old Democrats favor the death penalty, compared with 47% of those ages 35 to 49 and about four-in-ten Democrats who are 18 to 34 or 65 and older.

Overall, White adults are more likely to favor the death penalty than Black or Hispanic adults, while White and Asian American adults are equally likely to favor the death penalty. However, White Democrats are less likely to favor the death penalty than Black, Hispanic or Asian Democrats. About half of Hispanic (53%), Asian (53%) and Black (48%) Democrats favor the death penalty, compared with 42% of White Democrats.

About eight-in-ten White Republicans favor the death penalty, as do about seven-in-ten Hispanic Republicans (69%).

Differences by race and ethnicity, education over whether there are racial disparities in death penalty sentencing

There are substantial demographic differences in views of whether death sentencing is applied fairly across racial groups. While 85% of Black adults say Black people are more likely than White people to be sentenced to death for committing similar crimes, a narrower majority of Hispanic adults (61%) and about half of White adults (49%) say the same. People with four-year college degrees (68%) also are more likely than those who have not completed college (50%) to say that Black people and White people are treated differently when it comes to the death penalty.

About eight-in-ten Democrats (83%), including fully 94% of liberal Democrats and three-quarters of conservative and moderate Democrats, say Black people are more likely than White people to be sentenced to death for committing the same type of crime – a view shared by just 25% of Republicans (18% of conservative Republicans and 38% of moderate and liberal Republicans).

Across educational and racial or ethnic groups, majorities say that the death penalty does not deter serious crimes, although there are differences in how widely this view is held. About seven-in-ten (69%) of those with college degrees say this, as do about six-in-ten (59%) of those without college degrees. About seven-in-ten Black adults (72%) and narrower majorities of White (62%) and Hispanic (63%) adults say the same. Asian American adults are more divided, with half saying the death penalty deters serious crimes and a similar share (49%) saying it does not.

Among Republicans, a narrow majority of conservative Republicans (56%) say the death penalty does deter serious crimes, while a similar share of moderate and liberal Republicans (57%) say it does not.

A large majority of liberal Democrats (82%) and a smaller, though still substantial, majority of conservative and moderate Democrats (70%) say the death penalty does not deter serious crimes. But Democrats are divided over whether the death penalty is morally justified. A majority of conservative and moderate Democrats (57%) say that a death sentence is morally justified when someone commits a crime like murder, compared with fewer than half of liberal Democrats (44%).

There is widespread agreement on one topic related to the death penalty: Nearly eight-in-ten (78%) say that there is some risk an innocent person will be put to death, including large majorities among various racial or ethnic, educational, and even ideological groups. For example, about two-thirds of conservative Republicans (65%) say this – compared with 34% who say there are adequate safeguards to ensure that no innocent person will be executed – despite conservative Republicans expressing quite favorable attitudes toward the death penalty on other questions.

Overwhelming share of death penalty supporters say it is morally justified

Those who favor the death penalty consistently express more favorable attitudes regarding specific aspects of the death penalty than those who oppose it.

For instance, nine-in-ten of those who favor the death penalty also say that the death penalty is morally justified when someone commits a crime like murder. Just 25% of those who oppose the death penalty say it is morally justified.

This relationship holds among members of each party. Among Republicans and Republican leaners who favor the death penalty, 94% say it is morally justified; 86% of Democrats and Democratic leaners who favor the death penalty also say this.

By comparison, just 35% of Republicans and 21% of Democrats who oppose the death penalty say it is morally justified.

Similarly, those who favor the death penalty are more likely to say it deters people from committing serious crimes. Half of those who favor the death penalty say this, compared with 13% of those who oppose it. And even though large majorities of both groups say there is some risk an innocent person will be put to death, members of the public who favor the death penalty are 24 percentage points more likely to say that there are adequate safeguards to prevent this than Americans who oppose the death penalty.

On the question of whether Black people and White people are equally likely to be sentenced to death for committing similar crimes, partisanship is more strongly associated with these views than one’s overall support for the death penalty: Republicans who oppose the death penalty are more likely than Democrats who favor it to say White people and Black people are equally likely to be sentenced to death.

Among Republicans who favor the death penalty, 78% say that Black and White people are equally likely to receive this sentence. Among Republicans who oppose the death penalty, about half (53%) say this. However, just 26% of Democrats who favor the death penalty say that Black and White people are equally likely to receive this sentence, and only 6% of Democrats who oppose the death penalty say this.

CORRECTION (July 13, 2021): The following sentence was updated to reflect the correct timespan: “Last year, in part because of the coronavirus outbreak, fewer people were executed than in any year in nearly three decades.” The changes did not affect the report’s substantive findings.

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The Death Penalty Is Important for America | Opinion

I n America, the death penalty has been an effective form of punishment for certain crimes since the founding of our nation. The Supreme Court ruled in the 1976 Gregg v. Georgia decision that the death penalty was constitutional because it was not found by the Court to be cruel and unusual as long as it is carried out in a manner "consistent with the evolving standards of decency that mark the progress of a maturing society."

Abolishing the death penalty today would be foolish for a number of reasons.

On June 28, 1776, Thomas Hickey was hanged in New York City. Hickey was a member of then-General George Washington 's elite protection team known as the Life Guard, who have been credited as a major reason that the Continental Army won the Revolution by keeping Washington safe so that he could lead the Army to victory.

Hickey would become the first ever soldier in the Continental Army to be sentenced to death for treason, after being found guilty of participating in a conspiracy to kill or kidnap George Washington, and ultimately stop the rebellion against England. A "Secret Committee" was created to investigate the plot which led to the sentencing of Hickey and their methods would become an early version of America's modern counterintelligence operations. At the time of the hanging, Army Surgeon William Eustis, who would become Massachusetts' governor later on, said the Hickey conspiracy was "the greatest and vilest attempt ever made against our country ... the plot, the infernal plot which has been contrived by our enemies."

Four years later in 1780, British Major John André schemed together with American General Benedict Arnold to seize the West Point fortification in New York from the Continental Army. The plot was foiled when General Washington's minutemen captured André who was hanged soon after.

The death penalty has rightfully been used for heinous crimes, murder, and treason throughout our nation's history. It is not only a healthy deterrent for criminals who have to think twice before committing one of these crimes, but the death penalty also can help prevent recurring crimes.

Executions also can bring closure for victim's family members, whose lives are otherwise haunted by a living criminal serving a life sentence. Just knowing the offender is still alive can cause mental anguish for loved ones.

Take for instance Ted Bundy, a serial killer and rapist who admitted to 36 murders during the 1970s, including a 12 -year-old girl. Many believe he likely killed more than 100 victims in total. It would be astonishingly difficult to think a monster like Bundy should have lived out his life behind bars, as opposed to being executed in 1989.

With softer policies leading in many progressive states, even the most heinous of criminals, such as Charles Manson, was eligible for parole every single year since 1978 until he died in 2017, even though he masterminded horrific murders. What if someone like him were to walk free?

Just this week, a 31-year-old NYPD officer was killed by a career criminal during a routine traffic stop in Queens, leaving a wife and 1-year-old son behind. City officials have called it a senseless act of violence. Has justice become so soft that criminals are not even deterred from killing a man that simply was protecting the community?

The nation has seen a rise in violent and heinous crimes over the past few years, especially in more progressive cities, where they have implemented soft on crime policies. With no deterrence or accountability, crime inevitably begins to mount, particularly those most heinous of all. The death penalty is a useful tool for law enforcement both federally and at the state level.

State and federal governments have every right to carry out lawful executions for the right reasons. It brings a degree of closure, and acts as a necessary deterrent for others to think twice before committing crimes.

Cliff Stearns was a former Republican representative from Florida.

The views expressed in this article are the writer's own.

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