While the National Information Infrastructure is still in the early stages of development, the Internet is fairly far along in linking law enforcement practitioners worldwide. The many ways law enforcement is using Internet include: (1) exchanging information, encrypted if necessary, on police procedures and technical matters; (2) getting information from the public on how to improve policing; (3) sharing with the public safety information such as missing persons reports, crime alerts, or requests for help; (4) communicating with subject experts, keeping in touch with colleagues met at conferences or in training courses, and exchanging intelligence across jurisdictional lines. Home pages on the Internet contain information on: how to report crimes; how to get a job in law enforcement; outstanding crimes and rewards offered; and crime prevention tips, among other subjects. The article includes a list of Internet and E-mail addresses for: Newsgroups and E-mail Lists; Law Enforcement Web Sites; Learning the Internet; and Searching the Internet.