Since the police where there to investigate the Sgt. They were after her partner. Therefore, going after the Sgt. is OUT OF LINE. Revealing personal information to the military .... no matter the reason ... is OUT OF LINE. It's an invasion of privacy.
The police violated the public trust when they called the Air Force to report the Sgt. was gay. It's not their business, it's not the Air Force's business. The police acted improperly.
Regardless of what the Sgt. did or did not do, the police have ZERO reason to out her to the military.
The police violated the public trust and they are NOT worthy of wearing the badge.