Marwan Mohammed is recognized for his research on delinquent careers through the prism of youth gangs, desistance and organized crime. His preferred methodologies are rooted in the experience of individuals, including in-depth observation and interviews. Questions of inequality and racism are also part of his field of research.

Conferences given: 

• The social stratification of criminal worlds (November 2, 2021)
• Round table: Ethnography in difficult terrain (November 3, 2021)
• Discussion: Organized crime and urban violence on both sides of the Atlantic (November 4, 2021)