Katrin Mueller-Johnson

Katrin Mueller-Johnson is an Associate Professor of Criminology at the University of Oxford's Centre for Criminology and a Research Fellow at Green Templeton College. She holds a PhD in Human Development from Cornell University, a MSt in Legal Research from the University of Oxford, and a Dipl. Psych. from the Free University of Berlin.

Her research focuses on cyber-victimisation, particularly sextortion, online threats to public-facing professionals (e.g., police officers), and vicarious victimisation of law enforcement personnel. She also investigates investigative interviewing techniques, legal decision-making in cybercrime cases, and child abuse investigations. Her work has been funded by AHRC, ESRC, EPSRC, and others.

Teaching includes modules on research methods, quantitative data analysis, and psychology in legal contexts. She supervises DPhil and MSc students in cyber-victimisation, crimes against vulnerable groups, and legal psychological topics.

• Awards: Home Office Academic Innovation Award for a multi-university study on protecting public-facing professionals (2025).
• Grants: Supported by AHRC, ESRC, EPSRC, British Academy, Newton Trust, and Optimus Foundation.

Her publications span 29 journal articles, including analyses of sexting coercion, police training efficacy, and crime harm indices. She has collaborated with UK and international police forces to advance evidence-based policing strategies.