Police complaints center - USA - http://www.policeabuse.com/
Citizens united for Justice USA http://www.geocities.com/cuf_justice/
Cop Crimes USA http://www.copcrimes.com/
Cops suck http://www.copssuck.net/
Copswatch http://www.specmind.com/copswatch.htm
Copwatch http://www.specmind.com/copswatch.htm
Copwatch directory http://mediafilter.org./namespace_ad.html
There are hundreds of others, covering many countries
CopLink - Police Directory
CopNet - Police Directory
Cops On-Line - forum for cops
European Court of Human Rights - web site
European Court of Justice - cases and decisions.
Human Rights - European police web site
International Association of Women Police - web site.
International Court of Justice - cases and decisions.
International Police Association - web site.
International Union of Police Associations - web site.
Interpol - web site.
Law and Order - online magazine.
Law Enforcement - everything about law enforcement
Law Enforcement News - magazine.
It's a Cop Thing - web site including stories and humour.
Largely-legal - Australian law website.
Police Officers Internet Directory - as it says
Police Guide - search engine
Web-Police - International organisation linking countries in order to fight crime.