One of the things to understand about accountability for police officers who are out on the street on patrol is that they have tremendous autonomy. They are out on the road by themselves with nobody watching. In a sense, the community is watching, but they are out there working on their own for the most part.
The accountability systems you have for your civilians involve supervision that is actually physically proximate. You are able to see what they're doing. We have performance appraisals, we have the supervisors who are watching the work of the people who are working inside our buildings, and in a relative sense, that is simple compared to the issues you have in trying to ensure accountability for people who have tremendous autonomy.