The DPIC, death penalty info center, is an anti death penalty site. Its owners are all abolitionists. Now, the claim of deterrence in their database has many arguments—all flawed—buts lets focus on one: 88% of criminologists think it does not deter. Yep, that's the argument. Instead of numbering the numerous fallacies this falls into lets merely look into the claim head on.
Now, what the DPIC ignores is the important fact that 100% of the criminologists for question twelve answered "yes". In other words, they concede the DP may deter some. Just a major fact they where missing. Now, question eight noted 61% of criminologists think there is valid evidence deterrence exists in peer reviewed studies. But they must agree with this as 16 studies (slightly higher now) agree with the deterrence hypothesis. In question six it was asked if the DP significantly reduced murder, 57% said this statement was false. Here is the catch: this means 43% think it is (or is possibly true). That is a huge minority that cannot be overlooked. Questions 1-3 is where the 88% number came up, again ignoring the 100% number. However, these questions where not even relevant to the DP, and where poorly worded, leading to weak results. Also in relation to question six, they never defined significant giving bias towards the abolitionists.
Further, the study was biased. Dudley Sharp notes:
(Sharp 2009)
So this study isn't even accurate anyway. And remember question 12, 100% of criminologists think the DP deters some.
Overall source:
Now, what the DPIC ignores is the important fact that 100% of the criminologists for question twelve answered "yes". In other words, they concede the DP may deter some. Just a major fact they where missing. Now, question eight noted 61% of criminologists think there is valid evidence deterrence exists in peer reviewed studies. But they must agree with this as 16 studies (slightly higher now) agree with the deterrence hypothesis. In question six it was asked if the DP significantly reduced murder, 57% said this statement was false. Here is the catch: this means 43% think it is (or is possibly true). That is a huge minority that cannot be overlooked. Questions 1-3 is where the 88% number came up, again ignoring the 100% number. However, these questions where not even relevant to the DP, and where poorly worded, leading to weak results. Also in relation to question six, they never defined significant giving bias towards the abolitionists.
Further, the study was biased. Dudley Sharp notes:
"This Survey was funded by Sheilah's Fund at the Tides Foundation in San Francisco and was arranged through the Death Penalty Information Center (DPIC) in Washington, D.C.The Tides Foundation Death Penalty Mobilization Fund's sole purpose is the end of the death penalty. Sheilah's Fund is a direct contributor to anti death penalty efforts, as well.The DPIC is one of the leading anti death penalty groups in the US and, in my opinion, is one of the most deceptive.Prof. Radelet has been one of the most active anti death penalty activists for decades.Jeffrey Fagan is a ASC Fellow and has been an anti death penalty activist for decades."
(Sharp 2009)
So this study isn't even accurate anyway. And remember question 12, 100% of criminologists think the DP deters some.
Overall source:
Dudley Sharp, "Deterrence and the Death Penalty: A Reply to Radelet and Lacock," Justice for all, <http://homicidesurvivors.com/2009/07/02/deterrence-and-the-death-penalty-a-reply-to-radelet-and-lacock.aspx>