A lot of places from Motorola folks, to DPS folks, to government employees, relatives in the government and in DPS, press releases, watching FCC licensing, actual monitoring.... And a lot of inside informants that I will not disclose as to keep their jobs, personal information, and other things safe. In multiple States, not just TN. I have made a contact or two over the years in places I have lived, visited, etc. Once you have been involved with scanning, and Public Safety for over 30 years, you build up good sources,.. And sometimes a few bad ones, but the good stuff out ways the bad, and the good sources will usually correct bad info very fast!