Many researchers have assumed that trust in the police increases victims’ willingness to report crimes. This question has rarely been considered empirically, but most of the available research suggests a surprising conclusion: trust in the police does not appear to increase the likelihood of people reporting crime. The seriousness of the crime and, in particular, the relationship between the victim and the perpetrator do have a significant impact on willingness to report. An especially interesting and influential factor may be mutual trust between citizens, which researchers of social capital have named ‘generalized trust’. Does a high level of generalized trust reduce citizens’ desire to rely on official control? This article examines the links between generalized trust and trust in the police, and their interactive effect on the willingness to report violent and property crimes. The research data are based on Finnish national crime victim survey data collected in 2006.