Impermissibility (no matter what) is an extreme—if sometimes justifiable—constraint on means. Other means, however, may be problematic but permissible under certain conditions. In this chapter, we consider some of the problematic means employed by police in the course of their work and question their use in some circumstances in which they are often employed. The point is not to exclude their use, but to keep their use within appropriate moral bounds. The chapter focuses particularly on the public trust that police must maintain, and the consequences that the employment of problematic means may have on that trust.