“…The influence of communication formats in police decision making is under-researched, although it has been given some consideration in studies of information technology and policing (Manning, 1988(Manning, , 1992(Manning, , 2001Ericson and Haggerty, 1997;Chan et al, 2001) and police and mass media (Ericson et al, 1987(Ericson et al, , 1989(Ericson et al, , 1991Altheide, 1993;Surette, 1997;Doyle, 2003;Doyle and Ericson, 2004). I will consider three types of communication format that influence police discretion.…”