His research interest is in the area of eyewitness memory. His work examines how the memories of witnesses are affected by misleading post-event information (eyewitness suggestibility) and explores possible ways of reducing the errors that result from this exposure. In addition, he has recently done research on the beliefs held by judges and jurors about eyewitness memory, and the correspondence between these expressed beliefs and the ability to evaluate eyewitness testimony. He has also been active in promoting the use of research-based guidelines for collecting eyewitness evidence and has collaborated in this endeavor with faculty from the LSU Law School as well as judges, prosecutors, and law enforcement personnel in Southern Louisiana.