Passive Millimeter Wave Imaging developed by the US Millitech corporation can scan people from up to 12 feet away and see through clothing to detect concealed items such as weapons, packages and other contraband. Variations of this through-clothing human screening under development (by companies such as the US Raytheon Co.), include systems which illuminate an individual with a low- intensity electromagnetic pulse. A three side very-low X ray system for human usage, in fixed sites such as prisons, is being developed by Nicolet Imaging Systems of San Diego.
Night vision technology developed as a result of the Vietnam war has now been adapted for police usage. Particularly successful are heli-tele surveillance versions which allow cameras to track human heat signatures in total darkness.
Source:
AN APPRAISAL OF TECHNOLOGIES OF POLITICAL CONTROL, Report for the SCIENTIFIC AND TECHNOLOGICAL OPTIONS ASSESSMENT, EU Parliament, 1998, Steve Wright
Neural Network Bugs
Neural network bugs go one step further. Built like a small cockroach, as soon as the lights go out they can crawl to the best location for surveillance. In fact Japanese researchers have taken this idea one step further, controlling and manipulating real cockroaches by implanting microprocessors and electrodes in their bodies. The insects can be fitted with micro cameras and sensors to reach the places other bugs can't reach.
Source:
Davies, S, (1997), Police tap into the secrets of technology, Daily telegraph, January 28, p. 7. Whymant, R (1997), 6-legged superspy scuttles to our aid, Times, 29 January.
Sonic Holograms and Silent Sound
New Scientist reported in article 'Perfect Sound from Thin Air, New Scientist, 7 September 1996, p. 22., that the American Technology Corporation (ATC) of Poway California has used what it calls acoustical heterodyning technology to target individuals in a crowd with infra-sound to pinpoint an individual 200-300 metres away. The system can also project sonic holograms which can conjure audio messages out of thin air so just one person hears.