Police Use of Force: Collection of National Data
U.S. Department of Justice
http://www.ojp.usdoj.gov/bjs/abstract/puof.htm

Early Warning Systems: Responding to the Problem Police Officer
U.S. Department of Justice
http://www.ncjrs.org/pdffiles1/nij/188565.pdf

Best Practices Review
Police Assessment Resource Center
http://www.parc.info

Police Accountability and Citizen Review
The International Association of Chiefs of Police
http://www.theiacp.org/documents/pdfs/Publications/policeaccountability.pdf

Revisiting Who Is Guarding the Guardians?
A Report on Police Practices and Civil Rights in America
U.S. Commission on Civil Rights
http://www.usccr.gov/pubs/guard/main.htm

Shielded From Justice: Police Brutality and Accountability in the United States.
Human Rights Watch
http://www.hrw.org/reports98/police/index.htm