As a former police officer, I found the introduction of cameras into the police cruiser to be one of the very best tools for reminding officers to be on their best behavior and an exceptional evidence gathering tool. Body cameras would go even further to serve those same interests. The majority of police officers I worked with were exceptional people, but everyone needs that reminder that when you put on that uniform, you are held to a higher standard than any other member of society. Additionally, these cameras would capture the entire interaction between the public and police and would easily clarify what occurred when officers or the public they interact with are accused of misconduct or illegal activity. The argument against these cameras holds no weight as the courts have already established that you have no (or very limited) expectation of privacy when dealing with the police and that officers themselves have very little expectation of privacy in the normal performance of their duties. Date storage, retention, and use are certainly issues that will need addressed, but guidelines already exist for destruction of documents related to criminal investigations.