21st Century Surveillance From Police Magazine

Satellite technology, smartphones, HD cameras, and even aerial drones are being used by law enforcement to track criminals and gather intelligence.-  by Dean Scoville

Photo: Mark W. Clark
Photo: Mark W. Clark

Revolutionary progress in the world of technology has enabled numerous changes in the techniques police officers use to identify, track, and make cases against suspects.

Throughout the 20th century, most of the technological advances in law enforcement revolved around creating and improving methods of communication: radio communications, telephone communications, and emergency communications. The proliferation of computers in the latter part of the century ushered in the digital age of communications, which not only increased the speed with which officers communicate with one another, but now allows for large amounts of data to be transmitted to and from officers in the field. This breakthrough has led to great advances in other technologies that rely on vast amounts of data—such as real-time imaging, biometrics, database searches, and global positioning systems—technologies that lend themselves to a variety of surveillance applications.

Sound and Vision

One of the earliest permanent surveillance installations used by law enforcement was the ShotSpotter gunshot detection system. First deployed in 1995 in Redwood City, Calif., this system uses multiple audio sensors installed on rooftops and telephone poles throughout a city or region to pinpoint the location of a gunshot. Within seconds, a computer analysis system differentiates gunshots from car backfires, a global positioning system triangulates the origin of the gunshot based upon its distance from the sensors, and an automated communications system notifies dispatch. Uniformed officers can be at the site of the shooting within minutes. When ShotSpotter systems are combined with visual surveillance systems, such as traffic monitoring cameras or license plate readers, subsequent investigations often result in positive identification and prosecution of the shooting suspect.

CLICK HERE TO READ THE FULL  ARTICLE  FROM POLICE MAG

About securityteknews
Ralph Thomas is author of over 32 books on various aspects of conducting investigations, founder and director of The National Association Of Investigative Specialists,CEO of Thomas Investigative Publications, Inc, The Spy Exchange And Security Center and SpyTek Wholesale Imports. Thomas is a member of the Executive Security Council of Griffith Colson Intelligence Service, a private intelligence agency. Thomas's latest project is NAIStv on the Griffith Media TV Network. He has also developed A Native American Store in Georgetown Texas called Tribal Impressions. You can review his person home page off of: http://www.pimall.com/thomas

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