Quest Red+1

Freak weather hits Texas and the team fight to save eight horses swimming in a flooded pasture. The rescue is successful but a horse is left with potentially fatal wounds.

Forensic scientists reconstruct the scene of a bludgeoning murder in Georgia, USA, and find a suspect in the murder of a missing man. Will microfibres hold the key.

With no fingerprints at the scene, detectives turn to cutting-edge forensic techniques to track a callous killer, hoping to catch him before he could strike again.

A succession of stabbings leaves cops chasing a potential double murder suspect and a drug bust at the home of a dealer unearths more than the officers bargained for.

Officers are called after a shopkeeper threatens a gang of youths with a knife. Plus, police are forced to be creative when trying to capture a tricky criminal.

Robert Henry, an executive in Tacoma, is murdered in 1995 by a masked gunman. His wife tells police she thinks he was killed by a former business associate.

See how, in the 1993 World Trade Center bombing, DNA was traced to the bomber through the saliva that remained on the back of a mailing label.

Discover how a few milligrams of forensic evidence can be crucial to a crime investigation and prove the innocence or guilt of the accused.

Exploring the mind of the obsessive murderer, following the work of psychologists as they study the muddled workings of the criminal psyche.

Experts analyse a man's deception following the Manchester Arena terror attack. Police tapes expose a man who murdered his wife and hid her body in the freezer.

When arrested for historic sexual offences, TV weatherman Fred Talbot tried to hide the truth in police interviews. His repeated response of 'no comment' speaks volumes.

Harold Shipman was a much-loved doctor. Millions watched the GP speaking on TV discussing the benefits of care, not knowing he'd already killed dozens of patients.

When 16-year-old Becky Watts vanished without trace suspicions fell on her step-brother and his partner. Experts analyse police interviews for clues.

When Laci Peterson went missing, her husband claimed he last saw her before he went fishing - but his secret mistress exposed his lies. Experts examine his behaviour.

Levi Bellfield denied his connection to a series of murders and rapes, but videotaped police interviews tell a different story. Experts spot the giveaway signs.

In Arkansas, 47-year-old Mario Miller turns up dead in a stranger's driveway. As detectives trace his last hours, a chilling conspiracy is revealed.

After a gunfight outside a bar ends with two dead, Grand Rapids detectives discover that twin brothers are involved.