How to deal with differences based on culture, ethnicity and race, has become a key issue of policing. This edited collected explores everyday, often mundane interactions between police officers and migrantised actors in European countries and asks how both sides deal with perceived differences. The contributions reflect that such differences are not just ‘out there’ but are being situationally (re-)produced in police-citizen encounters. By taking a comparative approach, the book develops a distinctly European perspective on these questions. The book contains 12 ethnographies from ten European countries, based on new and often innovative empirical research, two theoretical contributions, an introduction and a postface.