SO19 is the Met's Armed Response Unit - an elite team of experienced firearms officers who are ready to be on-scene in minutes to meet the threat of an armed incident in the capital. Following the horrific terrorist attacks in London in July 2005 and the tragic accidental shooting of an innocent Brazilian man thought to be involved in the attacks, the profile of the Metropolitan Police's armed unit has never been so high. The tough decisions they face on a daily basis have been brought to the forefront of the public's mind and the controversial so-called 'shoot to kill' policy has been hotly debated throughout the media.