Drawing on interactional approaches to comment clauses (Stenstrom 1994; Povolna 2010), the paper reveals the discourse functions of I mean (Part 1) and you know (Part 2) in the context of police interviews. More specifically, taking into account the socio-pragmatic setting of police-suspect interaction, it highlights the context-dependence and the multifunctionality of these markers based on data from two police interview transcripts. Thus, following the spirit of the study by Fox Tree and Schrock (2002), Part 1 of the analysis demonstrates that while the primary role of I mean is that of "forewarning upcoming adjustments" (Schiffrin 1987), the marker performs interpersonal, turn management, repairing, monitoring and organizing functions. This being the case, the study examines the potential of I meanm to modify the ongoing interaction and stresses its contribution to the coherence of the interviewees" narratives. Attention is also drawn to the syntactic environment in which I mean occurs as well as to listener responses to I mean and I mean-introduced ideas. Finally, the discussion touches upon the issue of power relations and shows the role which I mean plays in the linguistic manifestation of power in an institutional setting
