The trial against Harvey Weinstein began on Monday and while the disgraced media mogul is facing charges of sexually assaulting two women, his potential conviction could hinge on the statements of three others who say he sexually abused them, too.

The three women have not been publicly identified, and their allegations involving rape and two incidents of forced oral sex are not part of the criminal charges. They will be allowed to testify in the trial, however, due to the Molineux Rule , which says that other accusations can be used to establish, among other things, a pattern to an offenders criminal behavior. That means their testimony could be pivotal to the prosecutors case that Weinstein was a predator an allegation he has denied.