The first of two episodes that take viewers behind the scenes of a police investigation into the pre-mediated and brutal murder of a young man in the middle of woodland.

The second half of the double episode. The DCI believes that he knows who was behind the murder. Cameras follow the case as detectives decide to arrest the victim's friends.

In a two part special, a covert police unit track a smuggling operation bringing huge quantities of drugs into the UK. Can they catch the ringleader?

The covert police operation tracking a major drug smuggling operation closes in on the ringleaders in a nerve-shredding conclusion.

In Cambridgeshire, police hear a recording of a woman plotting to have her ex-husband killed - the start of a gripping investigation as officers race against time.

Police investigate a woman secretly recorded plotting to have a man she met on a dating site kill her ex-husband. Can officers gather enough evidence to prove it?

A 23-year-old man with a history of violence is questioned over a string of offences that have left victims badly hurt, but refuses to give any answers. Without fresh evidence, the police has no choice but to release the suspect. Within days of leaving police custody, he reoffends and officially ends up on the Most Wanted list.

In Luton, a man is shot in the chest by a complete stranger. The same suspect threatens a woman. With a gunman on the loose, a frantic manhunt is launched to catch the shooter before he strikes again.

Cambridgeshire Police have a big problem: a murder hunt without a body. A complex search for clues takes them into the woods and across Europe, and features a mysterious post on Facebook.

In Luton, a man who has been attacked at home dies of severe brain trauma. The investigating officer met the victim a week before and is haunted by the idea that maybe she could have saved his life.

Police officers search for a man in Luton who disguises himself as a delivery driver to force his way into people's homes and commit brutal assaults. However, when the police investigation fails to make headway, the family of one of the victims launch a campaign for information on social media - which increases the likelihood of the criminal seeing he is at risk of discovery and going to ground.

A violent daytime brawl with knives erupts on the streets of Luton as chicken hop war heats up. The case then takes a disturbing twist when a police raid lands a huge cache of drugs.

A lone detective is on the trail of a Luton man who sexually abused scores of young people, in what becomes a very complex and disturbing pursuit.

In the gripping conclusion to this two-part special, the victims of historic child sex abuse come forward to try and finally get justice, and prevent the suspect from walking free for the ninth time.

On a quiet Sunday lunchtime in a Cambridgeshire suburb, a man lies bleeding to death on the doorstep. A major manhunt is triggered, where the strength of family blood ties is brutally exposed.

Features police investigations into one of the most disturbing and hard-to-prove crimes, baby-shaking cases, and examines parents' often-divided loyalties. Detectives probe the stories of the parents, as they piece together what really happened

Behind the scenes of a police investigation into the tragic, shocking death of an 11-week-old baby. A crime that leaves experienced officers shocked and dismayed by what they find, but determined to pursue justice for the baby boy.

Behind the scenes of a police investigation into the shocking death of an 11-week-old baby. The real-life drama of the police's search for justice for a baby, which digs deep to ask how and why Baby Teddy met his fate.

A true crime cold case special revisits the brutal, unsolved murder of six-year-old Rikki Neave 27 years ago. Only now can the full truth be revealed of how a killer remained unpunished and on the loose for nearly three decades.

A dedicated police team start a fresh investigation into Rikki Neave's murder, sparking a 'cat and mouse' game between the detectives determined to find justice and the suspect determined to evade it.

Bedfordshire Police investigate a possible break-in and a devastating high-speed car chase, navigating the rights and wrongs of people taking the law into their own hands.

Bedfordshire Police race to rescue a missing 15-year-old girl after receiving intelligence that a 20-year old man is holding her captive at his flat in Luton. She isn't his only victim, the suspect has targeted a large number of other underage girls.

The story behind the murder of a man in Luton who is found dead and naked in the hallway of a block of flats. He may have unwittingly stepped into a honey trap, enticed by women with the promise of sex, when their real intention was to rob him.

Two women are charged with murder after a man is found robbed, naked and stabbed to death. But the CCTV reveals that the two women were also accompanied by two men on the night of the murder. The police must now track down and find these men.

Feature length special telling the gripping story of an armed siege in a tower block. With unprecedented access to the police command suite, we follow every twist and turn of the incident as it becomes more critical.

A man secretly films a couple having sex in an alleyway. Voyeurism can be a gateway crime, so the police are concerned when a club report a suspected attack on a woman.

A hook-up via a gay dating app leads to an accusation of rape. Featuring access to Bedfordshire Police's Rape & Serious Sexual Offences team, they try to work out whether there is enough evidence to charge a suspect who claims the sex was consensual.

A man is found stabbed to death outside a pub and another is fighting for his life with multiple stab wounds. Then another victim is found bleeding to death nearby in a garden. Police are baffled. But in this tight-knit community, nobody's talking.

Two men have been brutally murdered. The police have made arrests but the lead suspect is on the run. As the manhunt builds, a vital letter might hold the key.

The gripping inside story of a brutal machete and gun attack on a Luton doorstep, a gold chain, and a struggle against the odds to identify the attackers.

A 47-year-old disabled woman is found dead with her throat cut. There are suspects but no hard evidence. But then the case takes a major twist.

The original murder suspect is found dead and a large quantity of heroin is unearthed as detectives close in and prepare to question their final suspect.

A couple's lives are upended by online attacks and death threats in a gripping true crime story. Can the police solve a complex plot where nothing is as it seems?

In the small towns and villages of Bedfordshire, police investigate a surge in drug use where a major fraud is linked to a local gang exploiting vulnerable youths.

A woman calls the police at 4am. She's in deep trouble and many miles from home. Soon she's in a coma. Can detectives solve the mystery of how she got this way?

As dozens of detainees escape from Yarl's Wood immigration removal centre, cameras go deep inside the high-octane manhunt. But was the breakout random or planned by outsiders?

The inside track on a major covert operation against a Mexican drugs cartel who the police think are importing large quantities of methyl-amphetamine into Norfolk.

With cannabis deliveries coming through letter boxes across the country, sent to unexpected suspects, Luton CID have a battle on bringing the chief culprit to justice.

The inside story of the murder of a 74-year-old woman, and the macabre lengths the killer went to in attempting to conceal her death. Annette Smith's lodger reported that she has been missing for several weeks. Missing Persons find no trace of her. Detectives from the Major Crime Unit are called in on a gripping and disturbing case that shocks detectives

Detectives from the Major Crime Unit at Bedfordshire Police have a suspect in custody who admits to the crime - but the confession is only the beginning of a case that will bring a series of deeply disturbing twists and turns in a tale that shocks and surprises the experienced police team. Cameras follow as the police continue to probe the suspect and the interview becomes more and more chilling

A young woman's distressing 999 starts a rape investigation, revealing a dangerous suspect and a house filled with film records of multiple crimes.

The inside story of the investigation of a serial rapist continues. As evidence of more victims emerges, can police stop the suspect getting out on bail?

The disappearance of a 15-year-old boy leads the Guns & Gangs unit to a possible drug distribution line. But a raid on a suspected den gives detectives an unpleasant surprise.