BBC: Sentinel Project Research Reveals UK GPS Jammer Use, February 2012

“The illegal use of Global Positioning System (GPS) jammers in the UK has been revealed in a groundbreaking study. GPS jammers are believed to be mostly used by people driving vehicles fitted with tracking devices in order to mask their whereabouts. In one location the Sentinel study recorded more than 60 GPS jamming incidents in six months. The research follows concern that jammers could interfere with critical systems which rely on GPS.”

Continue reading the BBC article, which features an audio interview (@3:35) with Dr. Humphreys.