Richard R. Peterson, Ph.D.
Director, Research Department

Richard R. Peterson joined CJA as a Senior Research Analyst in 1998. He became Chair of the Research Department in 2000 and was named Director of the Research Department in 2002. He conducts research on criminal justice processing of domestic violence cases in New York City. Prior to joining CJA, he was a Program Officer at the Social Science Research Council, and directed the Center for Applied Social Science Research at New York University. He has taught Sociology courses at Columbia, Barnard, NYU and Bard College. He has published articles on women in the labor market, child care, and divorce and is the author of Women, Work and Divorce (SUNY Press, 1989). He has an A.B. in Sociology from Georgetown University, and an M.A. and Ph.D. in Sociology from Columbia University.

Tiffany Bergin, Ph.D.
Deputy Director, Research Department
Tiffany Bergin joined CJA as a Senior Research Analyst in 2017 and became Deputy Director of the Research Department in 2018. She leads research projects on courtroom decision-making and the impacts of pretrial detention. Prior to joining CJA she previously held the positions of Assistant Professor in the Department of Sociology at Kent State University (Ohio), and Director of Studies in Politics, Psychology, and Sociology at Lucy Cavendish College, University of Cambridge (United Kingdom). She is the author of An Introduction to Data Analysis: Quantitative, Qualitative and Mixed Methods (Sage Publications, 2018), The Evidence Enigma (Ashgate, 2013), and Regulating Alcohol Around the World: Policy Cocktails (Ashgate, 2013). She is also co-editor of Forging a Socio-Legal Approach to Environmental Harms: Global Perspectives (Routledge, 2017). She has an A.B. from the Woodrow Wilson School of Public and International Affairs at Princeton University, and an M.Phil. and Ph.D. in Criminology from the University of Cambridge.

Marian J. Gewirtz
Senior Research Analyst

Marian Gewirtz has been a member of the Research Department since 1976. She served as Research Director from 1981 to 1983 and was responsible for early CJA research evaluating Agency operations, including studies of court-date notification efforts and patterns of failure to appear. She directed the Assigned Counsel Eligibility Screening Project. She currently prepares the Agency report on juvenile offenders prosecuted in the adult court and has contributed to New York City efforts to plan and implement New York State’s Raise-the-Age law.  Her most recent publications explored the high rates of conviction for disorderly conduct and its use as a catchall disposition.  She earned a B.A. in Sociology from the State University of New York at Stony Brook and an M.A. in Sociology from Indiana University.

Hannah Joseph
Research Assistant

Hannah Joseph joined CJA as a Research Assistant in January 2019. She assists in maintaining the Juvenile Justice Database (JJDB), which measures the implementation of the Raise-the-Age initiative. Hannah supports the development of current studies on bail-setting practices and the collateral consequences of pretrial detention. Before CJA, Hannah conducted research for the Biennial Reports to Congress on the Violence Against Women Act, while working at the Violence Against Women Act Measuring Effectiveness Initiative (VAWAMEI), under contract with the Department of Justice. At the Cutler Institute for Health and Social Policy, Hannah helped produce the report “Unsealed Fate: The Unintended Consequences of Inadequate Safeguarding of Juvenile Records in Maine” by interviewing judicial professionals. Certified as a Rape Crisis Counselor Advocate in the state of Massachusetts, she has counseled victims in person and over hotlines. Hannah holds a B.A. from Mount Holyoke College in Gender Studies.

Stephen Koppel, J.D., Ph.D.
Senior Research Analyst

Stephen Koppel joined CJA as a Junior Research Analyst in 2017.  His research interests include drug policy, juvenile justice, and prosecutorial discretion.  Prior to joining CJA, he was a Behavioral Science Training (BST) Fellow in Drug Abuse Research at New York University.  He has taught courses in criminal justice at John Jay College, and has published several articles on law and criminal justice related topics.  He has a J.D. from Brooklyn Law School, a Ph.D. from John Jay College of Criminal Justice, and is a member of the New York State Bar.

Imani Randolph
Research Project Coordinator
Imani Randolph joined CJA as a Research Project Coordinator in February 2019. She oversees the planning, development and execution of a grant-funded project investigating the collateral consequences of pretrial detention. This study explores the impacts of pretrial detention on employment, families and housing for those detained. Prior to joining CJA, Imani was a Project Manager for two NIH-funded research studies at Wake Forest Baptist Medical Center and the University of North Carolina at Greensboro. Her research interests center around pretrial detention, particularly the experiences of pretrial adolescent offenders in NYC and the impacts of community diversion programming on judicial outcomes. She has a B.A. in Psychology from North Carolina A&T State University, and an M.A. in Forensic Psychology from City University of New York-John Jay College of Criminal Justice, where she was also awarded a Pinkerton Graduate Community Fellowship.

René Ropac, Ph.D.
Research Analyst

René Ropac joined CJA as a Research Analyst in May 2018. He handles the data on juvenile offenders who are prosecuted in the adult court as well as the Juvenile Justice Database (JJDB), a citywide database of juvenile delinquents who are prosecuted in family court. Prior to joining CJA, he held the position of Research Associate at The New York Society for the Prevention of Cruelty to Children, a non-profit that provides therapeutic and educational services to abused and neglected children and their families. René has a B.A. in Sociology from University of Vienna, Austria, and an M.A. and Ph.D. in Sociology from Temple University, Philadelphia.

Freda F. Solomon, Ph.D.
Senior Research Fellow

Freda F. Solomon joined CJA in 1988 as a Senior Research Analyst, and then served as the Deputy Research Director from 1989-2000, before being promoted to Senior Research Fellow. At CJA she has conducted a number of studies on the court impact of changes in criminal justice policies in New York City. Among these studies have been research relating to drug enforcement initiatives, and more recently, to changes in the characteristics, case processing and Criminal Court outcomes of defendants charged with quality-of-life offenses. She also has written about specialized jurisdiction criminal courts and women offenders, in both historical and contemporary contexts. A graduate of Clark University, she received an M.A. in Government from the American University College of Public Affairs, and an M.A. and Ph.D. in Political Science from Northwestern University.


Recent Reports


The Adult Court Case Processing of Juvenile Offenders in New York City, January through December 2018

Marian J. Gewirtz (2019)
Case Processing

Desk Appearance Tickets and Appearance Rates - The Benefits of Court Date Reminders

Russell F. Ferri, Ph.D. (2019)

The First Three Months of Raise The Age And A Comparison To Similar Cases In October Through December 2017

Marian J. Gewirtz (2019)
CJA Annual Report

CJA Annual Report 2017

Russell F. Ferri, Ph.D., Stephen Koppel, Ph.D. (2019)