Looks like the “It Wasn’t My Purse” defense didn’t get her out of this one: Paris Hilton has been charged with cocaine possession.

The hotel heiress could face up to four years in prison after 0.8 grams of the illegal drug was found in her handbag when she and boyfriend Cy Waits were stopped and searched by police in Las Vegas on Friday night.

It has been claimed District Attorney David Roger - who is overseeing the case - is set to sentence the 29-year-old socialite to prison, because he “won’t tolerate celebrities” who get into trouble. “Roger won’t tolerate celebrities coming to Las Vegas and thinking they can get away with illegal behavior. It’s going to be extremely difficult for Paris to get out of these charges, even with the brilliant legal skills of her lawyer, David Chesnoff,” said a source.

She is due in court on October 27 over the felony possession of a controlled substance charge, which was filed in court by the Clark County District Attorney’s Office.