Siyu Liu, Ph.D.

Assistant Professor of Criminal Justice, School of Public Affairs
Public Administration PhD Graduate Faculty
Criminal Justice Graduate Faculty
Office Phone: +1 717 948 6292
Office Location: Olmsted Building, W159
Mailing Address:
W159 Olmsted Bldg
Penn State Hbg
Middletown, PA 17057

Bottom Fields


Dr. Siyu Liu graduated from Peking University with bachelor’s degrees in Biomedical English and in Psychology. She obtained her master’s degree in Criminology and Criminal Justice in 2010 and a doctoral degree of the same field in 2014 from the School of Criminal Justice from University at Albany (SUNY). She specializes in quantitative research on the topics of juvenile delinquency, police legitimacy, and the death penalty in China. Her research has a comparative focus through empirical studies of China and the United States. Dr. Liu is an active member of a group of Chinese criminologists based in the U.S. and has been presenting her research projects in more than eight prestigious universities in China.

Professional Affiliations: 


  • American Society of Criminology (ASC)
  • Academy of Criminal Justice Sciences (ACJS)
  • Association of Chinese Criminology and Criminal Justice in the US (ACCCJ) [treasurer] URL:
  • Chinese American Professors and Professionals of Pennsylvania (CAP) [treasurer] URL:


Research Interests
Juvenile Justice and Delinquency Prevention
Life Course Criminology
Comparative Criminology
Prison Reentry