Nine former students who claim that Brooklyn’s Poly Prep Country Day School engaged in a decades-long cover-up of a sexually abusive football coach have scored a significant victory in their lawsuit against the prestigious, 156-year-old school.

On Tuesday, Eastern District Magistrate Judge Cheryl L. Pollak granted a discovery motion that allows the plaintiffs to depose the school’s current and former headmasters and requires the school to turn over personnel files and investigative records regarding the alleged sexual misconduct of the football coach, the now-deceased Philip Foglietta.