PhD, JD and Hamill Family Professor of Law and Psychology at the University San Francisco School of Law. He has won numerous individual and career achievement awards for research excellence and distinction, and he has been the recipient of Soros and Guggenheim fellowships, as well as a Fellowship from the Center for the Advanced Study in the Behavioral Sciences at Stanford University.

Dr. Leo has authored more than 100 articles in leading scientific and legal journals as well as several books, including the multiple award-winning Police Interrogation and American Justice (2008). His publications have been translated into multiple languages and downloaded more than 70,000 times on the Social Science Research Network (SSRN).  Dr. Leo has been featured and/or quoted in hundreds of national media stories media, and his research has been cited by numerous appellate courts, including the United States Supreme Court on multiple occasions. He is regularly invited to lecture and present training sessions to lawyers, judges, police, forensic psychologists and other criminal justice professionals. Dr. Leo is also often called to advise and assist practising attorneys and has served as a litigation consultant and/or expert witness in hundreds of criminal and civil cases.