The power of radio has helped the Belleville Police Service. Police had asked for the public’s help early yesterday to find a young man wanted for an alleged sexual assault on a child Wednesday. Wanted was 19 year old Steven Isaac Cruikshank. Cruikshank turned himself in to Belleville Police yesterday after he heard his name on the radio. Apparently, Cruikshank, who has no fixed address, was staying at a home where the assault took place.