In his four years with S019, the Metropolitan Police Special Firearms Wing, Steve Collins has been in over a thousand contacts: that is gun battles, with Yardies; IRA gunmen; East End gangsters, such as the notorious Arifs and their hitmen; drug smugglers from South America and elsewhere; and lone gunmen who have simply gone berserk. A judge commending the bravery of Steve's team said, "If only the public knew the calibre of the men that protect them". S019 protects us from chaos and violence London. These groups are expert in firearms operations in an urban environment - the SAS come to them for training. Collins gives the inside story of these operations, which we might otherwise only get to hear about when they make the headlines.