“…For another example, as noted above, policies mandating or encouraging officers to make arrests when they have probable cause in cases of spousal assault have increased the incidence of such arrests. The documentation that comes with officers' compliance with these rules facilitates their enforcement by supervisors, but even so, given officers' near monopoly on information about cases in which arrests are not made, compliance is only partial at best, (Cross and Newbold 2010;Ferraro 1989). Generally, we might hypothesize that the lower the visibility of the discretionary action that is the subject of administrative rules, the less able the department is to enforce the rule and the lower the rate of officers' compliance will be.…”