(Photograph) - Following up a lead: playground rumours about drugs persuaded John Peckham, head of Bramhall high school, Stockport, to call in Steve Warren and sniffer dog Scuba - against the advice of his local authority. The team from a private security firm found two 15-year-old boys in possession of cannabis - both have now been suspended. Mr Peckham has warned all children at his 1,450-pupil school that he is prepared to call in Scuba and her handler again