The parents of a woman sued by her daughter for what she claimed were years of sexual abuse when she was a child asked the Georgia Supreme Court on Thursday to strike down Georgia’s “Hidden Predators Act” as unconstitutional.

An amendment to the state’s childhood sexual abuse statute provided a two-year “window” beginning in July 2015 for those claiming to have been abused years or even decades earlier to file civil claims against their alleged abusers, despite relevant statutes of limitations that would have otherwise expired.