Professor of European Criminal Law and Justice. Member of the European Commission's Expert Group on EU Criminal Policy. Estella has previously held posts at the University of Sheffield and the University of Leicester, as well as visiting positions at the Max Planck Institute for Foreign and International Penal Law, Freiburg; the School of Criminology, Simon Fraser University, British Columbia; and the Institute of Criminology, Cambridge. She was a trustee of Fair Trials International from 2002-2008, and chaired the Board of Trustees from 2006-2008.
Estella's primary area of expertise is EU, transnational and comparative criminal law and justice, particularly the evolving penal competence of the EU and its role in governance and citizenship. She also works in the field of punishment and sentencing.