This is an interesting website tied in with John Jay College. It has position papers and policy briefs available.
Prosecutors And Officer-Involved Fatalities A Forced Evolution: A Forced Evolution From Tragedy To Advocacy
When Cops Kill Civilians Finding a Path to Justice
Every U.S. prosecutor should expect that an officer-involved shooting or death will occur “at some point” during her tenure, and have in place a plan to deal with it fairly and transparently, suggests a paper produced by the Institute for Innovation in Prosecution at John Jay College.
— Read on http://www.prosecution.org/