Credit: Amanda Bynes on Twitter Photo: This Week in the Life and Times of Amanda Bynes...

The New York Police Department is treating Amanda Bynes' sexual assault allegations seriously.

Internal Affairs is looking into Amanda's claim that one of the officers sexually harassed her during her arrest Thursday night — or, as she likes to put it, "slapped her vagina."

Paul Browne, NYPD's chief spokesman, confirmed the investigation, saying, "As it would with any such allegation, regardless of its credibility, IAB is investigating it."

In her court appearance Friday, Amanda said the officer entered her apartment illegally but didn't say anything about the sexual assault until she was released, got home, and got on Twitter.

One of Amanda's most recent tweets, sent out Saturday at 10 p.m. EST, says, "Believe everything I say on twitter!"

In the immortal words of Cher from Clueless: "As if!"

Source: Amanda Bynes on Twitter, TMZ

Credit: NY Daily News via AOL On Photo: Watch Amanda Bynes Get Arrested For Weed Possession (VIDEO)