I am a Professor of Criminology at the University of Oxford and a Senior Research Fellow at Nuffield College, Oxford. I have written on the Russian mafia, Soviet criminal history, migration of mafia groups, Somali piracy, the dynamics of altruistic behaviour, and the application of Social Network Analysis to criminology.

I am the author of three monographs. My first book, The Russian Mafia (OUP, 2001), has been translated into Polish and Danish, and was the Co-Recipient of the ED A. HEWETT BOOK PRIZE awarded by The American Association for the Advancement of Slavic Studies.

Mafias on the Move (PUP, 2011) has been translated into Italian, and was the Recipient of The International Association for the Study of Organized Crime 2012 Outstanding Publication Award. 

My new book, Mafia Life (Profile and OUP, 2017), has been translated into seven languages and has been optioned for TV.

I also edited the four-volume collection Organised Crime (Routledge, 2010). I have published papers in journals such as The British Journal of Criminology, Law and Society Review, Archives Européenes de Sociologie, Political Studies, Cahiers du Monde Russe, Rationality & Society, European Sociological Review, and Trends in Organized Crime, among others.

I contribute to The Times Literary Supplement and, in Italy, I have written for La Stampa and La Repubblica. My work has been featured in The Economist, The BBC News & World Service, ABC, The Guardian, The New York Times, The Monkeycage Blog and Freakonomics blog, among others.