Document Type

Article

Publication Date

2024

Publication Title

Arizona State Law Journal

Abstract

Despite the foundational principle in the American criminal justice system that it is better to acquit the guilty than to convict the innocent, wrongful convictions remain a persistent issue. Wrongful convictions are sometimes caused by flawed evidence, such as eyewitness misidentifications and unreliable forensic techniques. Researchers and scholars have studied this problem of flawed evidence extensively, leading to many successful reform efforts to address this portion of the wrongful conviction problem. But there is another portion of the wrongful conviction problem that has yet to be the target of reform efforts—wrongful convictions caused by juror error. Implicit biases, forbidden assumptions, and strategic voting are jury errors that can lead to wrongful convictions, yet they are difficult problems to address given the black box of secrecy that surrounds jury deliberations. This Article proposes the use of “placebo trials” as a novel thought experiment that could transform into a real experimental method to identify and address jury error. Placebo trials simulate real trials in every way, but they are not real. As far as jurors know, however, they are sitting on a real trial. Another important characteristic of placebo trials is that the objectively correct verdict outcome is an acquittal. By inserting a variable into a placebo trial, the experiment can show with firsthand jury data whether the variable impacts acquittal rates. If a variable has such an effect, then it may lead to wrongful convictions and should be the focus of reform efforts.

Volume

56

First Page

1361

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