A team of expert witnesses follow a trail of fibres and DNA to solve three cold cases in Pembrokeshire, and a fraudulent diamond investment scheme is exposed by a gemologist. Show more
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A body left in a field prompts the examination of pollen, establishing a new forensic discipline, and fibres fused with car wreckage prove who caused a fatal traffic collision. Show more
Marks left by the tread of a shoe help detectives catch a killer terrorising Rochdale, and a forensic linguist deciphers messages written in slang, revealing a murder plot. Show more
Blood traces hidden under paint allow an expert witness to find a killer and free five men from suspicion. An unusual gait identifies the murderer of an office worker. Show more
Soil analysis helps solve a 37-year-old murder investigation in Scotland. In Huddersfield, analysis of insect life on a body found on the moors helps detectives catch a killer. Show more
A dental expert helps police investigating the mysterious death of a teenage girl, and an autograph expert is brought in to help convict scammers selling fake celebrity signatures.
When a man kills four people and goes on the run, a handwriting analyst is brought in, and after a body is found, an expert in pollen links the suspects to the scene of the crime.
A fibre analyst helps solve the murder of Jo Yeates, and police turn to an expert witness to track the movements of suspects in a vicious robbery that turns into a murder inquiry. Show more
A food expert is brought in to explain what killed a healthy 38-year-old man, and an expert witness reconstructs the face of a murdered woman to help the police identify the victim. Show more
After a child is mysteriously shot, a ballistics expert helps find who fired the gun, and when the body of a woman is found in a river, a handwriting analyst helps solve the crime. Show more
In Hull, a pollen expert helps find a body and puts the killer behind bars, and analysis of blood spatter found at the scene of a crime reveals the truth behind a husband’s lies. Show more
Two officers in south Wales are confronted by a man with a 30cm-long kitchen knife. In Leeds, a traffic cop puts his life at risk to save a driver trapped in his van.
In Staffordshire, two officers save the life of a man in a burning building. In Norfolk, two firearms officers come face to face with a gunman in a car park. Show more
Blu Hydrangea hosts as two stitchers compete to create costumes inspired by pop culture. This time, the theme is The Hunger Games. Show more
Blu Hydrangea hosts as two stitchers compete to create costumes inspired by pop culture. This time, the theme is the Met Gala. Show more
Blu Hydrangea hosts as two stitchers create costumes inspired by pop culture. This time, the theme is Clueless. With just £100 and 12 hours to make their outfits, how will they fare? Show more
Drag star Blu Hydrangea hosts as two more costume-crazy Gen Zers compete to be crowned Stitch of the Week. Show more
The police turn to experts with a range of different disciplines to gather evidence in a missing person case. But this investigation soon turns into the hunt for a serial killer. Show more
In London, a Met officer is attacked by a man wielding a four-foot-long broadsword. An officer in York rescues her colleague from an icy river. Show more
A Surrey police officer receives life-changing injuries when his patrol car is involved in a terrifying high-speed crash. Show more