• Allows federal agents to follow sophisticated terrorists trained to evade
detection. For years, law enforcement has been able to use "roving wiretaps" to
investigate ordinary crimes, including drug offenses and racketeering. A roving
wiretap can be authorized by a federal judge to apply to a particular suspect,
rather than a particular phone or communications device. Because international
terrorists are sophisticated and trained to thwart surveillance by rapidly changing
locations and communication devices such as cell phones, the Act authorized
agents to seek court permission to use the same techniques in national security
investigations to track terrorists.
• Allows law enforcement to conduct investigations without tipping off
terrorists. In some cases if criminals are tipped off too early to an investigation,
they might flee, destroy evidence, intimidate or kill witnesses, cut off contact with
associates, or take other action to evade arrest. Therefore, federal courts in narrow
circumstances long have allowed law enforcement to delay for a limited time
when the subject is told that a judicially-approved search warrant has been
executed. Notice is always provided, but the reasonable delay gives law
enforcement time to identify the criminal's associates, eliminate immediate threats
to our communities, and coordinate the arrests of multiple individuals without
tipping them off beforehand. These delayed notification search warrants have
been used for decades, have proven crucial in drug and organized crime cases,
and have been upheld by courts as fully constitutional.
• Allows federal agents to ask a court for an order to obtain business records
in national security terrorism cases. Examining business records often provides
the key that investigators are looking for to solve a wide range of crimes.
Investigators might seek select records from hardware stores or chemical plants,
for example, to find out who bought materials to make a bomb, or bank records to
see who's sending money to terrorists. Law enforcement authorities have always
been able to obtain business records in criminal cases through grand jury
subpoenas, and continue to do so in national security cases where appropriate.
These records were sought in criminal cases such as the investigation of the
Zodiac gunman, where police suspected the gunman was inspired by a Scottish
occult poet, and wanted to learn who had checked the poet's books out of the
library. In national security cases where use of the grand jury process was not
appropriate, investigators previously had limited tools at their disposal to obtain
certain business records. Under the Patriot Act, the government can now ask a
federal court (the Foreign Intelligence Surveillance Court), if needed to aid an
investigation, to order production of the same type of records available through
grand jury subpoenas. This federal court, however, can issue these orders only
after the government demonstrates the records concerned are sought for an
authorized investigation to obtain foreign intelligence information not concerning
a U.S. person or to protect against international terrorism or clandestine
intelligence activities, provided that such investigation of a U.S. person is not
conducted solely on the basis of activities protected by the First Amendment.