Focus Area: Accuracy of Evidence in Criminal Cases

The Impact of Defense Experts on Juror Perceptions of Firearms Examination Testimony

By Brandon L. Garrett, Richard E. Gutierrez, and Nicholas Scurich in Jurimetrics. Firearms examiners, who seek to link fired ammunition to a particular gun, have testified in criminal trials for over a century. Research suggests that such evidence is highly persuasive to jurors. However, no studies have examined the effect of divergent conclusions offered by […]

Wyldes v. Iowa

This amicus brief challenged unreliable firearm tool mark comparison expert testimony. We joined with numerous amici in arguing that traditional forensic firearms and toolmark comparisons raise reliability concerns regarding methods and applications of the methods, showing that the scientific community has carefully detailed the lack of reliability of firearms and toolmark comparisons. Read the brief

Bolin v. Gittere

This amicus brief was filed in collaboration with the Innocence Project and Greenberg Traurig, LLP. Mr. Bolin has served 28 years on death row, and his conviction was based on several questionable evidentiary methods. We argue that the eyewitness testimony in his case was highly suggestive and unreliable. Read the case

The Brady Database

The Brady doctrine, which requires the government to disclose favorable and material evidence to the defendant, is one of the most frequently litigated criminal procedure issues. The Brady Database catalogs every Brady claim raised by petitioners from 2015 through 2019 that was able to be located. In total, it contains more than 1,300 cases where […]

AI and Criminal Procedure Rights: A Response to the National Institute of Justice Request for Input

AI and Criminal Procedure Rights: A Response to the National Institute of Justice Request for Input Brandon L. Garrett, Alicia Carriquiry, Karen Kafadar, Robin Mejia, Cynthia Rudin, Nicholas Scurich, and Hal Stern wrote this memo in response to NIJ’s request for public input regarding the response to Executive Order 14110, regarding the use of artificial […]

California v. Tidd

We partnered with Kelly Woodruff at the Complex Appellate Litigation Group to file a an amicus brief in the California Court of Appeals, challenging the reliability of firearm/toolmark evidence.  Read the case