I went into labor during my Labor Law final exam.
I don't know what the allegations are against LE here. I don't think the AG would be an appropriate contact, though. Why not the Chief of Police? Or do the allegations reach up that far? Maybe the Governor?
A "sex ring" generally means the victims are being passed around from perp to perp. Could be just a few people or hundreds involved. It isn't really an official legal term that I'm aware of.
Incest definitions vary from state to state. I'm sure we can trust Football Mom on her info that Alabama allows cousin sex.
Maybe they have the same suspicions but don't want to discuss them in public.

There is no obligation for LE to make only truthful statements in press releases.