I was wondering how the managed to get on your repeater to begin with.I think it is time to talk to their radio shop since they now can be fined for programming unauthorized frequencies in the radios for them.P-G said it earlier a true emergency but the"just in case" excuse doesn't hold water and they should be on FCC Part 90 frequencies to begin with,sounds like a rouge radio dealer. Thinking the could"get by" with using the Sheriff's Part 90 license is bull.They know it is only licensed for certain frequencies and not a license to operate on others repeaters or different bands.We find a good bit of people who like to play dumb when it comes to things of this sort but as the judge says ignorance of the law is no excuse...lol.............William