Episode list

Expert Witness

The Body in the Suitcase
A twisted killer throws two suitcases containing severed remains into a canal and it's down to a 3D scanning expert to uncover the crucial evidence needed to convict him.
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The Wheelie Bin Killer
When a body is found in a wheelie bin in a lake, a cell site analyst tracks the suspects' mobile phones. And when a man disappears, a soil expert helps identify his killers.
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Cracking the Killer's Code
When a killer gang use a secret language to discuss an attack, police turn to a forensic linguist. And a huge cannabis operation is brought down with the help of a drugs expert.
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Catching a Cold Case Killer
Untying the knot of a dressing gown cord used to kill a woman in 1984 finally reveals the perpetrator. And expert analysis of muddy shoes helps find the murderer of a missing student.
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Beneath the Ashes
After fire crews find a body in a burning flat, a blood spatter analyst uses an untested method to find key evidence. And a cold case is solved using familial DNA for the first time.
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Lured to the Woods
After a teenager is found dead in the woods, a pathologist analyses her stab wounds to shed light on the attack. When human remains are found in Scotland, a crack team of experts nail the killer.
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Blood on the Carpet
A mother and her son vanish in 1976, leaving just a burnt-out car. Forty years later, a blood analyst helps police find out the truth. And a phone analyst helps find the killer of a drowned man.
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Unearthing the Truth
A young boy is murdered, but his killer is not found. Thirty years later, a pollen expert finds crucial evidence. And a blood and fibre analyst helps find the killer of a shop worker.
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Blood on his Hands
A disabled woman is murdered, and her neighbour is the prime suspect, but it takes a doctor to help put him in jail. And a linguistics expert helps convict a man stalking his ex.
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Buried Secrets

Wed, Nov 20, 2024
The 2005 murder of a Glasgow woman goes cold, but 17 years on, a Dutch soil expert helps convict the killer. And in another murder case, a blood analyst uses an unusual technique to crack the crime.
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Befriend and Betray

Befriend and Betray

Criminal organizations succeed by enforcing a strict code of trust and loyalty. To penetrate these organizations and gain access to their inner circles the police need a magic bullet. Alex Caine is that magic bullet. Only 30 years old, Alex, who grew up hard on the mean streets of Montreal, already brings a lifetime's worth of experience (foster care, military service, prison time) to the world's most dangerous occupation: professional gang infiltrator. His job is to befriend criminals, participate in their illegal activities, and gather evidence--then live long enough to testify against them in court. Inspired by real-life events, "Befriend and Betray" tells the story of Alex's first infiltration assignment: the case that transformed him from a rootless young man into a highly effective, defiantly unconventional crime-fighting resource. He is approached by P.C. Lau, a ruthlessly ambitious soldier for the Kam Tin Triad, who asks him to help his old prison acquaintance with a business proposition. Since Alex comes from Montreal and speaks French, P.C. figures that he's just the man to be the face of the Kam Tin as they try to move their heroin into eastern Canada. What P.C. doesn't realize is that Alex has been approached by the police and Criminal Intelligence Services who have asked him to say "yes" to P.C.'s proposal--thus giving them a long sought-after way into the Kam Tin. Complicating matters for Alex is the fact that his girlfriend Melanie has no idea that he's agreed to work for the police. Alex figures that the less she knows, the safer she'll be. But the more he lies to protect her, the more likely he is to lose the one person who sees him as more than just a valuable crime-fighting asset. Combining action, suspense, humour, and actual details drawn from the case files of Alex Caine, "Befriend and Betray" tells the story of one man's re-birth as an infiltrator--and his struggle to not lose his identity or his life along the way.

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