A Project of the University of Michigan Law School and the MDefenders Program

Amicus Brief to Exclude Drug Recognition Expert

Pages 1-4 discuss the history and development of the DRE program; pages 6-10 explain how the DRE test fails Rule of Evidence 702 because it does not assist the trier of fact to understand a fact in issue and the officers who testify about it are not qualified in the relevant field of knowledge; and […]

Susceptibility of Adolescents to Influence

p. 18 – 23 incorporate research about the high susceptibility of adolescents to persuasion, especially by police. Amici argues that this makes adolescents more likely than adults to give false information to authority figures. Includes research on how adolescents respond to authority under stress.

Mistaken eyewitness identification expert report

This expert report collects and describes cutting edge social science describing the problems with eyewitness identifications including: the effects of poor lighting and distance (p. 5); the effects of a quick exposure and the problem of witnesses’ overestimating the length of exposure (p. 5-6); problems with cross-racial identifications (p. 6); problem if witness previously viewed […]

Motion to Exclude DNA “Likelihood Ratio” Testimony

Argues that “likelihood ratio” evidence — the statistical frequency of a suspect’s characteristic — has not been sufficiently validated and is misleading to the jury because the jury conflates it with probability of guilt.