Tony Lang, the leading police marksman who pulled the trigger on 3 different operations but then found himself charged with murder is interviewed, as are officers who tracked down Raoul Moat.
The armed siege is one of the riskiest scenarios any firearms officer will have to deal with. Those in the know recall the longest siege in police history, a Christmas Day stand-off and an aeroplane hijack.
Police must use the difficult 'hard stop' manoeuvre to intercept armed criminals on the move. In one story, this resulted in a fatal shooting and an officer on trial for murder.