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Criminal Justice

Meet the CJ Coaches

Kirsten Christiansen

Expertise: Statistics

I graduated with a Ph.D. in Criminal Justice from the CUNY Graduate Center in 2018 and have been teaching at John Jay for several years, focusing on undergraduate and graduate level statistics and research methods courses. My dissertation was a qualitative analysis of the framing of public protest in news media (specifically looking at newspapers in New York City). I am originally from Wisconsin but I have lived in New York City for over a decade, with a few years’ stop in Kentucky along the way. 

Email: kchristiansen@jjay.cuny.edu

Yu-Hsuan Liu

Expertise: Working with pre-law students with their law school applications, internship, and job search.

Yu-Hsuan (Sean) Liu spent twelve years as a police officer in Taiwan before enrolling in the Criminal Justice Ph.D. program at John Jay College, City University of New York. His research interests include the application of big data to criminal justice, police administration and performance monitoring, human trafficking, and terrorism studies.

Email: yliu@jjay.cuny.edu

Angel Vizurraga

Expertise: Statistics, Data Analysis, Research Methods 

Hello! My name is Angel Vizurraga. I obtained my Bachelor’s degree in Criminology at John Jay College and my Master’s degree in Data Analysis and Visualization from the CUNY Graduate Center. I’m currently working at John Jay as a lecturer for STA-250 and PSC 216 (crime mapping) courses. I have also been working in the 6.64 StatLab for a few years now, assisting graduate students in the 716 portion of the Comprehensive exam. I have experience working with R, SPSS, QGIS, JavaScript, Tableau, and Excel software. Please feel free to reach out in case of any questions. 

Email: avizurraga@jjay.cuny.edu