Police Have Broad Powers to Fight Terrorism
Law enforcement agents possess broad authority to detain persons when investigating acts of terrorism. Federal law allows police to detain a person as a material witness where there is probable cause showing that the suspect has information important to an investigation.Senate Expands Surveillance Powers Following Attacks, Newsbytes, September 16, 2001.
Investigators Explore Boundaries of Everything the Law Allows, New York Times, September 17, 2001 (registration required).
Pen Registers and Trap and Trace Devices , Tech Law Journal Daily Report, September 17, 2001.