He was arrested for child abuse in 2012. He was accused of abusing boys at two boarding schools many years earlier, St. George's School and Royal Hospital School. The accusation said he watched boys take showers and then touched a boy. He was put on trial. Warr told the court the accusations were "malicious lies". The trial lasted seven days. The members of the jury talked to each other for 40 minutes and then decided he was not guilty.