11/15. Analysis of text messages reveal a husband's plot to cover up his wife's murder, and traces of DNA on decades-old evidence help bring justice to the family of a murdered woman. Also in HD. [S]
9/15. A wrongful conviction is overturned by re-examining microscopic particles on a van seat, and an attempted murder outside a nightclub is solved by a facial comparison expert. Also in HD. [S,AD]
8/15. Soil on a spade helps catch the killer of a young woman from Swindon, who for years evaded justice and a stone stuck in the sole of a shoe helps solve a murder in Manchester. Also in HD. [S,AD]
4/15. When a woman is the victim of an acid attack in Brighton, an expert pieces together hours of CCTV footage to identify the suspect. Also in HD. [S]
3/15. When a 21-year-old student is murdered and dumped in the Humber Estuary, a forensic biologist helps police bring her killer to justice. Also in HD. [S]
3/15. 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. Also in HD. [S]
2/15. 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. Also in HD. [S]
14/15. A dentist's expertise in forensics helps police to connect a man to the disappearance of his wife. And a soil expert helps to bring convictions against three heritage thieves. Also in HD. [S]
12/15. Detectives hunting the killer of a young woman from Bolton require the help of a fibre and DNA specialist to arrest their suspect. Also in HD. [S]
7/15. An expert witness helps police link a drug gang to the death of a Vietnamese man in Wales. And DNA experts gather evidence that identifies the killer of a man from Bristol. Also in HD. [S]
8/8. When a young nurse is murdered, a soil analyst links the suspect to where the body was found. And a wildlife DNA specialist helps police catch illegal blood sport suspects. Also in HD. [S]
7/8. A fibre analyst is called in when a missing persons enquiry becomes a murder investigation, and a forensic archaeologist leads the search for the remains of a young woman. Also in HD. [S]
6/8. Blood pattern analysis helps identify the killer of a body found in a suitcase, and a forensic search specialist helps unlock a murder investigation. Also in HD. [S]
5/8. An ecologist uses her expertise in single-celled organisms to help crack a murder case, and a poisoned curry is suspected of killing a man - can an expert at Kew Gardens prove it? Also in HD. [S]
4/8. An expert witness uses soil analysis to find the body of a missing woman feared dead, and an odontologist is called on to examine a bite mark made on a murder victim 21 years ago. Also in HD. [S]
3/8. A forensic expert brings the lab to the crime scene, using a custom-built superglue gas chamber to lift fingerprints, and an autograph analyst proves signatures are fraudulent. Also in HD. [S]
1/8. A forensic biologist helps crack the cold-case murder of Brenda Page after 35 years, and a blood pattern analyst is called to investigate a murder in a post office. Also in HD. [S]
4/15. 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. Also in HD. [S]
13/15. An expert in mobile phone technology tracks the movements of a murder suspect, and an expert in art fraud determines whether a very expensive painting is genuine or fake. Also in HD. [S,AD]