In December 2021, the Safed Beth Din found that over a period of twenty-five years, Walder had sexually abused women, boys, and girls that had come to him for treatment. His victims included a female counsellor who worked at his summer camp, a 9-year-old boy and a 12-year-old boy who attended the camp, and a 9-year-old boy that had been abused over a decade ago after coming to Walder for treatment. Twenty-two witnesses, including victims, dayanim, and therapists testified about sexual assaults occurring at Walder's bookstore in Bnei Brak, his office, and hotels. One of the victims said she was thirteen when Walder first raped her; another said she'd sought help from Walder because of mental and financial distress. Several therapists testified that their patients had been abused by Walder. A kiruv worker, who worked with ex-Haredi youths, reported that Walder had assaulted a boy and girl that had come to him for treatment. In one of the recordings presented to Beth Din, Walder was heard coaxing a young woman to conceal evidence and withdraw her testimony and threatening to commit suicide if their relationship was exposed. Walder was summoned to the Safed Beth Din, but refused to attend.
