Well, to be fair, your OP was kinda thin on details, and so I had to go with what I could research on the 'net. You're the one who started screaming (howling) about a sex offender having a permit, and were wondering how it was possible, so, others on here did your research for you. From what you described hearing coming across the scanner in your OP, he was stopped, they checked his record, and it came back that he was a sex offender who had a VALID license for firearms, and you were wondering how it was possible. Posters on here have offered you several possible scenarios.