For a better experience, click the Compatibility Mode icon above to turn off Compatibility Mode, which is only for viewing older websites.

David DeMatteo

Director of the JD/PhD Program in Law and Clinical Psychology

Professor of Law

Professor of Psychology

Professor David DeMatteo


Office: School of Law, Room 267
Phone: 215.571.4707
Fax: 215.571.4712

Administrative Support:
Donna Strunk
Phone: 215.571.4802


David DeMatteo is a leader in mental health law and a prolific scholar whose research interests include psychopathic personality, forensic mental health assessment, offender diversion and drug-involved criminal offenders. The director of the JD-PhD program in Law and Psychology, he holds a joint appointment at the Drexel University College of Arts and Sciences. 

Professor DeMatteo's research has been funded by numerous federal and state agencies, as well as private foundations, including the National Institute on Drug Abuse, Pennsylvania Department of Health, Pennsylvania Commission on Crime and Delinquency, Pennsylvania Department of Welfare, Laura and John Arnold Foundation and the American Psychology-Law Society. In 2018, he received $128,000 in federal grant funds to study the impact of crisis intervention training in correctional facilities in three Pennsylvania counties.

He has written and edited 10 books, including "Problem Solving Courts and the Criminal Justice System," (with Kirk Heilbrun, Alice Thornewill and Shelby Arnold) forthcoming from Oxford University Press, and more than 110 articles and book chapters in his areas of interest.

In 2013, Professor DeMatteo received the Pennsylvania Forensic Rights and Treatment Conference Recognition Award in recognition of his research on diversion programs for drug-involved and mentally ill offenders. In 2011, he received the Teaching Excellence Award from the Drexel University College of Arts and Sciences. 

He is an associate editor for Law and Human Behavior, serves on the editorial boards of 12 journals, and serves a reviewer for more than 50 scientific journals.  He has also given more than 185 conference presentations.

In addition to serving two terms as an American Psychological Association Council Representative for the American Psychology-Law Society (APA Division 41), Dr. DeMatteo was chair of the APA’s Committee on Legal Issues in 2011. He is a fellow of APA, a fellow of the American Academy of Forensic Psychology, and board certified in forensic psychology by the American Board of Professional Psychology. He was elected president of the American Psychology-Law Society (APA Division 41) in 2016.

He received his BA in psychology from Rutgers University, his MA and PhD in Clinical Psychology from MCP Hahnemann University, and his JD, magna cum laude, from the Villanova University School of Law. He was also the executive editor of the Villanova Law Review and a member of the Order of the Coif.

Dr. DeMatteo is licensed as a psychologist in Pennsylvania, where he conducts forensic mental health assessments of juveniles and adults on a variety of legal issues.