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A Beverly Hills cop allegedly sneaked a peek at Whitney Houston's dead body and then ogled out loud ... but law enforcement sources tell us the allegation is bogus.

The incident allegedly occurred in the Beverly Hilton Hotel suite where Houston was found dead in a bathroom back in February, 2012.

Officer Brian Weir claims the Sergeant removed the sheet covering the body below her genitals and blurted out, "Damn, she's still looking good, huh?" For bad measure the cop allegedly added she "looked attractive for a woman of her age and current state."

Now here's what's suspicious ... Officer Weir filed a complaint with the California Department of Labor, claiming the Beverly Hills Police Dept. retaliated against him for lodging a complaint against the Sgt. and says he was removed from his position with the SWAT and K-9 Units.

Weir says he complained to his supervisor shortly after Houston died. But law enforcement sources tell us ... Weir NEVER uttered a peep about the alleged incident. There is NO record of any complaint ... period. We're told cops didn't ever know Weir had beef until they heard about it Monday.

One law enforcement source calls Weir's complaint "sour grapes."