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.
Senior Research Analyst
Tiffany Bergin joined CJA as a Senior Research Analyst in 2017. 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 The Evidence Enigma (Ashgate, 2013), Regulating Alcohol Around the World: Policy Cocktails (Ashgate, 2013), and a textbook on research methods (forthcoming from Sage). 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.

Russell Ferri, Ph.D.
Senior Research Analyst
Russell Ferri joined CJA in 2015 as a Junior Research Analyst.  He was promoted to Research Analyst in 2016 and Senior Research Analyst in 2017.  He conducts research and evaluations of CJA’s Bail Expediting Program (BEX) and Supervised Release program in Queens.  He also manages the publication of CJA’s Annual Report.  Prior to joining CJA Russell worked as a consultant at Outright Action International and a Research Associate at Culture of Respect.  He has also served as an Adjunct Professor at New York University.  He holds a BA in Political Science from the University of Massachusetts, Amherst, an MA in Law and Society from New York University, and a Ph.D. in Sociology from New York University.

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 the data for the New York City sites for the State Court Processing Statistics Program, a Bureau of Justice Statistics project administered by the Pretrial Services Resource Center. 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.

Stephen Koppel, J.D., Ph.D.
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.

Evan Misshula
Senior Data Analyst
Evan Misshula joined CJA as a Senior Data Analyst in March 2018.  Evan uses machine learning to examine court appearance data for NYC criminal cases and conducts statistical analysis of Manhattan’s Extended Pre-Arraignment Screening Unit, which works to guide people with mental illness out of the Criminal Justice system.  Prior to joining CJA, he was a Data Scientist for the Misdemeanor Justice Project at John Jay College.  He has also taught as an adjunct lecturer in the department of Math and Computer Science at CUNY John Jay, and has taught programming to detainees on Rikers Island through Columbia University’s Center for Justice.  He is a PhD candidate in Criminal Justice at the CUNY Graduate Center where he has won fellowships from the CUNY Graduate Center, the University of Chicago and the University of Illinois at Urbana-Champaign.

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

Release and Bail

Understanding the Past, Imagining the Future: 13 Highlights from 30 Years of New York City Criminal Justice Data

Aubrey Fox, Stephen Koppel, Ph.D., Freda F. Solomon, Ph.D. (2018)
CJA Annual Report

CJA Annual Report 2016


Annual Report on the Adult Court Case Processing of Juvenile Offenders in New York City, January Through December 2016

Marian J. Gewirtz (2018)
ATI/ATD Programs

Research Brief No. 42: Reducing Unnecessary Pretrial Detention: CJA's Manhattan Supervised Release Program

Freda F. Solomon, Ph.D., Russell F. Ferri, Ph.D. (2017)