Etiene Martins

DPhil Criminology

Other affiliations

St Hilda's College


Etiene Martins is a federal judge at the District of São Paulo, Brazil, and a DPhil candidate supervised by Professor Rachel Condry at the Centre for Criminology (Faculty of Law, University of Oxford). His doctoral research investigates the dynamics of adolescent-to-parent violence in Rio de Janeiro, Brazil, exploring how victimized parents and young offenders experience this serious problem. The investigation also analyzes, in depth, police, youth offender program, and judicial practices in this unique and complex form of domestic violence.

Etiene holds a master's degree from Harvard Law School (2018–2019). He has been a Howard League Fellow at The Howard League for Penal Reform (London, UK) and Senior Fellow at the Weinstein International Foundation (San Francisco, CA), a nonprofit that promotes conflict resolution. He was a Judicial Fellow at the U.S. Federal Judicial Center (Washington, D.C., 2019) and attended the 2021 Fisher Family Summer Fellows Program on Democracy and Development at Stanford University (Palo Alto, CA) and the 2022 McCain Global Leaders Program at the John McCain Institute (Washington, D.C.).

Etiene has been a trial court judge since 2014. He was appointed Auxiliary Judge at the Brazilian Supreme Court for a two-year term (2021 - 2023). Prior to becoming a judge, Etiene was a police officer for 16 years in Rio de Janeiro, Brazil (1998-2014). He has guest lectured in law and conflict resolution at the Judicial College and the Rio de Janeiro Police Academy since 2016.





Research Interests

Sentencing, International Criminal Law, and conflict resolution

Research projects & programmes

Centre for Criminology