Increased attention is being focused on the technological needs of the law enforcement community, and most of the advanced technologies available to law enforcement have come from defense and space programs. One example of advanced technology is the concealed weapon scanner. Two prototypes have been developed, and a handheld unit will eventually be produced. The explosives detector is an advanced technology used for airline and airport security but it has law enforcement applications. Devices are also available to detect both explosives and narcotics. Computer technology is becoming extremely sophisticated, and many law enforcement applications are available. The use of advanced technology by police departments, however, depends on the kind of technology and the situation in which it is to be used. Advanced technology can be abused without probable cause and warrants and violates constitutional rights in some cases. The role of the National Institute of Justice in supporting advanced technology for law enforcement use is discussed. 2 photographs