One of the UK's most prolific sex offenders ever, David Carrick took advantage of his position as a serving officer to attack women for nearly 20 years.
When police arrive at a devastating car accident, they find Claire Howarth dead Due to her head injuries. But her fiance, officer Martin Forshaw, is barely hurt.
Officer Kashif Mahmood signs out a car, picks up a partner and sets off in search of a suspect car. When he finds his target, he stops and searches the vehicle, finding a bag of cash; which he takes and let's the driver go.
Michael Coulton was trusted to protect the Royal Family, so when his wife, Patricia, is found brutally murdered near her workplace he is just seen as a grieving husband. However soon after they make some discoveries about his private life.
Australian officers couldn't believe it when they intercepted a call to an international drugs cartel and heard their senior officer Mark Standen on the line.
An unknown blackmailer laces dog food with poison and baby food with glass, always able to stay one step ahead of police - until his true identity is revealed.
Stacy Peterson was a young mother of two, reported missing by her sister. Her husband Drew claimed she had left him, but her sister is so convinced Drew is responsible for her disappearance she went to another district to make the report.
