It's very possible no one noticed and the deputies just all started talking on the same talkgroup and no one noticed, so the dispatcher just uses the same talkgroup communicate back. There are only a few deputies in the county (like 6), and the county being dispatched by the Perquimans County dispatchers part time. The database has not changed, and the Sheriff's office has been on VIPER for a long time. Or maybe the Sheriff's Office just decided to pick that particular talkgroup start using it? Who knows? Plus the county manager who ran the dispatchers office left and a new one hired in the last few months.