Warning: contains spoilers forLine Of Dutyseries one to four.
The picture signified a shift in focus for the hit BBC crime drama.
Series four put the nation into a tizz with the question who is Balaclava Man?
Another teenage girl was killed and her body disguised as Carlys for blackmail purposes.
Tommy Hunter regularly used young people in his criminal undertakings.
In series one, Ryan Pilkington, a twelve-year-old child from The Bog, was Tommys messenger boy.
Evidence against Hunter wasnt used and he was placed under witness protection before being killed by his criminal associates.
Cottan remained in the employ of the Balaclava Gang throughout series two and three.
Dot also shot dead DI Lindsay Denton to cover up his corruption.
Lakewell colluded in the framing of Michael Farmer, a former client.
