Murder Case: The Digital Detectives

When a 17-year-old Nottingham boy is stabbed, the only evidence is his dying declaration that there were four assailants. Nottinghamshire Police turn to their Digital Forensics Unit to sift online and phone footprints and track down the culprits.

The burnt body of a 27-year-old man is discovered in a remote nature reserve in Scotland. All forensics were destroyed in the fire, so detectives turn to Police Scotland's Digital Forensics Unit to help solve the case.

When a 13-year-old is murdered in a Reading park, the Digital Forensics Unit use groundbreaking tools to track suspects' digital footprints in a race against time to find the evidence and secure a conviction.

Harvey Willgoose, 15, was stabbed to death in his Sheffield school by classmate Umar Khan. Digital forensics revealed online escalation, an obsession with weapons, and two boys failed by the systems that were meant to keep them safe.

A minor beef between ex-friends turned gang rivals spirals into a brutal act of revenge. Digital forensics follow the trail, exposing how a minor conflict escalated.

Much-loved mother Samantha Holden was found dead in her Hampshire flat by her son. The last message she received was from a killer who went on the run. But his digital footprint would lead armed police officers to his door.