Andrew R. Klein, Ph.D., is a senior criminal justice research analyst at AHP. His areas of expertise include criminal justice, court administration, drug use, domestic violence, and victim services. He has served as the principal investigator for major National Institute of Justice (NIJ)-funded research on stalking, elder abuse, specialized probation supervision, correctional residential substance abuse treatment (RSAT), and civil protective orders. He was commissioned by the U.S. Department of Justice (DOJ) to author Practical Implications of Domestic Violence Research for Law Enforcement, Prosecutors, and Judges, issued as an NIJ Special Report in 2009. Subsequently, he was commissioned to join in the writing of Practical Implications of Current Intimate Partner Violence Research for Victim Advocates and Service Providers in 2013. As a team member for the Substance Abuse and Mental Health Services Administration’s (SAMHSA) Jail Diversion and Trauma Recovery (JDTR) Priority to Veterans evaluation, he has led site visits, written descriptive reports for 10 of the 13 state programs, and met with state and local pilot program directors, as well as representatives of each jurisdiction’s hospital and community-based U.S. Department of Veterans Affairs (VA) programs. He is also the project director of a DOJ Bureau of Justice Assistance (BJA) technical assistance program for state prison and jail RSAT programs in all 50 states, the District of Columbia, and U.S. territories. Among other duties, he oversees the development of new curriculum for correctional and community treatment staff for trauma-informed care and co-occurring treatment for RSAT inmates while incarcerated and under aftercare supervision, including special populations such as incarcerated veterans.