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Sources
- ASG Surveillance Group. "Audio surveillance and the law." 2008. (Dec. 15, 2008) http://www.cheatingspousepi.com/audio_surveillance_law/
- Brick House Security. "Countersurveillance." 2008. (Dec. 15, 2008) http://www.brickhousesecurity.com/about-counter-surveillance-bug-tap-detectors.html
- Burton, Fred. "The secrets of countersurveillance." Stratfor. June 6, 2007. (Dec. 15, 2008) http://www.stratfor.com/secrets_countersurveillance
- Garcia, Anna. "'Spying' made easy." NBC. Dec. 1, 2008. (Dec. 15, 2008) http://www.wjhg.com/home/headlines/35315784.html
- Hubbard, Ben. "Police turn to secret weapon: GPS device." Washington Post. Aug. 13, 2008. (Dec. 1, 2008) http://www.washingtonpost.com/wp-dyn/content/article/2008/08/12/AR2008081203275.html
- MES Innovations. "Explanation of surveillance devices." 2005. (Dec. 15, 2008) http://www.mesinnovations.com/devices/rfwireless.html