Chicago FBI - Federal Bureau of Investigations office serving the residents and law enforcement agencies of northern Illinois. Includes investigative programs, field offices, public speakers, top fugitives, employment, history and contacts. - http://chicago.fbi.gov/
Chicago Police Department (CPD) - Official site that provides citizens and officers resources to support community policing and prevent crime. Includes programs, events, beat reports, and contacts. - http://www.ci.chi.il.us/CommunityPolicing/