Jason Walker is a doctoral student in the School of Criminology and Criminal Justice at Arizona State University. His research interests include examining the influences of sentencing outcomes, judicial decision-making, police behaviors, individuals' perceptions of police, and quantitative methods. Prior to attending the doctoral program at Arizona State University, Jason worked as an analyst for the United States Sentencing Commission in Washington, D.C. and as a research assistant for the Center for Violence Prevention and Community Safety. Currently, Jason is working on projects examining the influence of criminal histories towards sentencing outcomes and the effectiveness of gang prevention programs.