Police interpreting is somewhat unjustly neglected by most recent linguistic studies. As an act of necessary and therefore intense interpersonal and intercultural communication, police interpreting provides an excellent example of the way in which an interpreter deals with colloquialisms and hedges, as well as forms of address and other forms of politeness. This paper is based on the analysis of four short extracts from interviews with Russian witnesses conducted at a police station by English- speaking detectives and interpreted by four different interpreters. The findings suggest that interpreters often avoid or change colloquialisms and hedges, which could provide evidence of pragmatic intention. The extracts also confirm that interpreters tend to misrepresent the speaker by introducing more polite forms, which in turn can make the testimony of a witness either less certain or more definite. A brief analysis of some in-group terminology in interpreting is also offered.