 In the days leading up to his arrest, he claimed that the agency had unlawfully installed a covert listening device in his home and a GPS tracking device in his car; during the subsequent trial, the ATF admitted to planting the device.Bell alleged in his 2003 lawsuit that the government employees had actually planted an illegal GPS tracking device in his car months before the one ostensibly allowed by the October 2000 warrant, at least as early as Bell's April 2000 release from prison.The information from that prior device could not be used, however, because there was no warrant allowing it to be planted.