
Eagle-eyed technical experts prove there is no such thing as a perfect crime as they assemble the pieces every criminal leaves behind. Dramatic crime re-creations and, sometimes, part of the investigations are a staple of the series. Some of the re-creations include alternate versions of the crimes, which are disproved by science. The show's episodes follow each case from the initial investigation until it reaches its legal resolution.

A police officer claims his estranged wife's shooting death was a suicide, but investigators think it was a murder.

Handwriting and simple doodles complicate a car-bomb case and an alleged self-defense shooting in a peaceful British farming village as police uncover a husband's plot to kill his wife for insurance money.

A woman is killed two days before she was scheduled to testify against a man accused of assaulting her and the prime suspect has an alibi.

A man arrested for the sexual assault and attempted murder of a boy in a European country becomes linked to a murder in Zurich, Switzerland, through analysis of microorganisms.