Documentary following the work of Britain's police dogs in real operations, sniffing out everything from drugs and weapons to counterfeit money. Ken Stott narrates.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they keep the roads safe.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

Action-packed documentary following rapid response officers, the fastest cops in Britain, as they crack down on crime. Time is of the essence.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

Our series finale brings you the greatest smashes, extreme bouts of road rage and even the most bizarre traffic entertainment ever caught on camera.

The story of Malcolm Green, who was jailed for life for the brutal murder of a Cardiff prostitute, only to kill again when he was released after 18 years.

The story of taxi driver Ben Lacomba, who was convicted for the brutal murder of his ex-partner even though her body was never found.

The Martial Arts Murder: When his parents are found dead, a man does everything he can to avoid being caught - but Luminol reveals a vital clue.

A profile of the serial killer known as The Gainesville Ripper, who targeted Florida students with crimes so horrific that he inspired the movie Scream.

After finding her dead in a bathtub full of bleach, detectives narrowed down Susan Eyre's killer from 210,000 possible suspects.

The story of 11-year-old Jeralee, who was lured into the car of James Edward Wood - a man with no reason to harm but a strong desire to kill.

The story of the senseless killing of 83-year-old Peter Wrighton, who was targeted by Alexander Palmer while out walking his dog in 2017.

In 1973, Dawn Magyar's body was found two months after she had vanished. Twenty-eight years on, advances in forensics helped solve the case.

Four vicious murders put Mark Hobson at the centre of a nationwide manhunt as he became Britain's most wanted man. This is his story.

Murder at the Wedding: Bite marks in a block of cheese hold the key to catching a killer when he helps himself to a snack after a home invasion.

Robin Chard: As Robin Chard makes his way home to his wife, he crosses paths with two men who carry out a brutal and unprovoked attack on him.

When Kemia Hassel calls 911 cradling her dying husband, detectives have no idea that they'll soon unravel a sinister murder-for-hire plot.

After being picked up by NHS worker Duncan Bone at King's Cross in 1992, Karl Warne and Colin Lockett would murder their host at his flat.

A chilling profile of the vicious serial killer who claimed the lives of at least seven innocent people between 2003 and 2016.

Nikki Sue Entzel dials 911 to report a fire at her home, but the supposed accidental house fire turns into a murder investigation.

Fred Dinenage examines the crimes of George Joseph Smith, who drowned his three wives between 1912 and 1914.

The story of serial killer Geoffrey Evans and his accomplice John Shaw, who hit headlines in 1976 after the murders of two women in Ireland.

Documentary following the work of Britain's police dogs in real operations, sniffing out everything from drugs and weapons to counterfeit money. Ken Stott narrates.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

Action-packed documentary following rapid response officers, the fastest cops in Britain, as they crack down on crime. Time is of the essence.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

A specialist crime squad stop a mugger on a moped, intruders prowl the tiny streets of a model village and insurance cheats have their fake falls exposed.

A new season of Caught On Dashcam! From crazy weather to shocking road rage and the answer to why the chicken crossed the road, all caught on camera.

A family's worst nightmare occurs when 16-year-old Becky Watts goes missing, and is found dead days later, murdered by her own stepbrother.

The story of David Ryan, who cheated his lover out of £60,000 before bludgeoning her to death and mutilating her body to cover his tracks.

Murder at the Wedding: Bite marks in a block of cheese hold the key to catching a killer when he helps himself to a snack after a home invasion.

A profile of The Truck Stop Killer, who targeted hitchhikers and truck stop sex workers in a horrific string of crimes spanning 15 years.

After a badly decomposed body was found in a suitcase by a railway embankment in Exeter, Police hunt for the killer with only CCTV evidence to go on.

Two teenage girls have the misfortune of crossing paths with a cold-blooded killer, one year apart.

The story of 22-year-old Emma Baum, who was savagely battered to death by her ex-boyfriend David Davies in a row over access to their child.

In 1999 and 2000, John Eric Armstrong prowled Detroit looking for sex workers. A seemingly normal father, no one suspected he was a killer.

A look at the 21-year-old killer who brutally took the life of British student Matthew Pyke, after developing an obsessive infatuation with his girlfriend.

Murder By the Lake: True crime series putting murders under the microscope and exploring how forensic science helped investigators solve them.

Unlocking the Truth: In 1998, 22-year-old Jenny went out, looking forward to an evening with friends. That night would end in tragedy, as she never returned home.

When a mother of two is found stabbed to death at her home in Olton, West Midlands in July 12, 2020, it appeared to be a burglary gone wrong.

An occult-obsessed man gets jail time after viciously stabbing his friend to death. Upon his release, he strikes again.

A look at the life of the American serial killer, who was convicted of three murders but confessed to many more.

When Kemia Hassel calls 911 cradling her dying husband, detectives have no idea that they'll soon unravel a sinister murder-for-hire plot.

Fred Dinenage investigates the crimes of meticulous masked killer Donald Neilson.

The Sneinton Strangler: The chilling story of Mark Martin, who murdered three homeless women in his quest to become Nottingham's first serial killer.

Documentary following the work of Britain's police dogs in real operations, sniffing out everything from drugs and weapons to counterfeit money. Ken Stott narrates.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

Action-packed documentary following rapid response officers, the fastest cops in Britain, as they crack down on crime. Time is of the essence.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

When a grandmother is dragged to the ground in a robbery, her family unites to catch the culprit. Launderette owners plaster the streets with wanted posters.

A ruthless gang is attacking people who are wearing expensive watches. A collection of clueless criminals are uncovered thanks to their criminally bad disguises.

A trusting woman is shocked to learn her new best friend is a fraud. An airport bag thief steals something irreplaceable.

From novice drivers to taxi nightmares and even a horse-riding shotgun, it's time to buckle up for a brand-new episode of Caught On Dashcam.

A dangerous sexual predator, John Cannan murdered one young woman just days after his release from prison, and is suspected of many others.

The story of the senseless killing of 83-year-old Peter Wrighton, who was targeted by Alexander Palmer while out walking his dog in 2017.

Murder By the Lake: True crime series putting murders under the microscope and exploring how forensic science helped investigators solve them.

A profile of the Rhode Island family man and Sunday school teacher, who also turned out to be a cold-blooded triple murderer.

In 1986, Detective David Baker became the first person to use DNA profiling in a criminal investigation, when looking for the killer of two young girls.

Robin Chard: As Robin Chard makes his way home to his wife, he crosses paths with two men who carry out a brutal and unprovoked attack on him.

The story of a young wife and mother-of-four, murdered ferociously by her controlling husband and an accomplice.

Over a 25-year career of murder, Richard Biegenwald killed at least six people as he sought out ever more inventive ways of dealing death.

Meet the perpetrator of one of the worst firearm crimes in British history. After brutally killing 12 people in Cumbria, he then turned the gun on himself.

A Killer in the Family: True crime series putting murders under the microscope and exploring how forensic science helped investigators solve them.

In 2002, police made a startling discovery inside a locked room in Anthony Hardy's home. This was merely a horrifying prelude for what was to come.

Game Over: James is murdered in a house full of his loved ones. After investigators examine the murder weapon, a development involving digital forensics reveals a motive.

A reclusive millionaire, Allan Chappelow was brutally murdered by Chinese dissident and MI6 informant Wang Yam in an apparent identity theft scheme.

An investigation into the murderous mother-and-son duo, who killed their elderly landlady in a greed-fuelled ploy.

Letecia Stauch reported that her 11-year-old stepson hadn't come home, but what followed was a trial of deceit, secrets and murder.

The extraordinary tale of compulsive liar John Christie, who murdered six women and stored them in his home in Rillington Place.

The story of Malcolm Green, who was jailed for life for the brutal murder of a Cardiff prostitute, only to kill again when he was released after 18 years.

Documentary following the work of Britain's police dogs in real operations, sniffing out everything from drugs and weapons to counterfeit money. Ken Stott narrates.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

Join Ireland's Customs teams as they, with the help of the Irish police, try to stop organised smugglers from bringing drugs, cars and even exotic animals into the country.

The series going behind the scenes of immigration continues with rush hour at Calais. Officers search UK-bound lorries for illegal immigrants, with today's searches proving fruitful.

The Thames Valley Police provide a fascinating insight into car crime and its prevention. Plus, shocking video footage captures dangerous drivers in action. Strong language.

Find more spectacular crashes and roadside disasters in a new episode of Caught on Dashcam.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

The Body in the Bedroom: When the body of a Lithuanian immigrant is discovered, detectives are faced with uncovering how she died and who is responsible for her death.

A serial killer and rapist who murdered at least 23 men and boys, this is the little-known case of Ronald Dominique.

The story of a killer who was infamous for his whimpering confessions over the phone after each of his murders.

After Gordon Wardell makes an emotional appeal to find his wife's killers, police soon realise they must look closer to home.

Initially deemed accidental, handyman Brian McKandie's death was soon considered murder due to his severe injuries.

the mysterious 1986 disappearance of estate agent Suzy Lamplugh from Fulham, London.

the mysterious 1986 disappearance of London estate agent Suzy Lamplugh.

The Pembrokeshire Murders: In 1989, two bodies were found in Pembrokeshire - and the answers lay in the forensics, as a shocking truth was revealed.

When a body is found in woodland hours after an elderly couple are reported missing, residents in the village are shocked that there's a killer in their midst.

Steve Wright: As an unknown killer dubbed The Suffolk Strangler terrorised a community with a string of murders, Pam had no idea she was living with him.

A look at the horrific crimes of the serial killer who dubbed himself BTK - meaning 'Bind, Torture, Kill.

A woman heads off on an extended honeymoon but her out-of-character contact worries her friends, resulting in a tragic discovery.

The chilling story of Wendy Mann, whose life was taken in a jealous frenzy by her ex-partner and the father of her three children in 2015.

Colin Sutton recounts the investigation into an attack against a popular elderly couple, who were stabbed in their home by a man they knew well.

Officers Damien O'Brien and Steve Mottram stop a woman who likes to let her dog ride shotgun - even when her boyfriend is in the car.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

Documentary following the work of Britain's police dogs in real operations, sniffing out everything from drugs and weapons to counterfeit money. Ken Stott narrates.

Bad drivers face a police crackdown, traffic officers race to the scene of a blowout and Santa's reindeer head hundreds of miles south down the A1.

This observational documentary returns for a fifth series following the Thames Valley Police. Officers hit the jackpot in Slough's biggest ever drugs raid. Strong language.

From pesky traffic tricksters, navigation nightmares and terrifying tornadoes - join us for another exciting episode of Caught on Dashcam.

From extreme weather to parking disputes, prepare to say 'Did that REALLY just happen?' in another exciting episode of Caught on Dashcam.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

A look at the clever new methods the police and public are using to catch criminals.

Mother Paige Birgfeld went missing in 2007 and her remains were found five years later. A decade on, police closed the net on a local mechanic.

When Lanell Barsock is found dead, evidence points to her boyfriend - before detectives focus on best friend, Larene Austin.

17 years after his wife died in a car accident, Malcolm Webster became the focus of Scotland's longest ever criminal trial.

When a woman is found dead in a hotel, police realise that an apparent suicide is not what it seems, leading to a manhunt that crosses borders.

The story of taxi driver Ben Lacomba, who was convicted for the brutal murder of his ex-partner even though her body was never found.

When a body is found in woodland hours after an elderly couple are reported missing, residents in the village are shocked that there's a killer in their midst.

The Lady in the Lake: Carol Park's body was pulled from a lake more than 20 years after she vanished and the key to the case lay in unique forensics.

New & Exclusive. Explore the case of a prominent New Zealand eye doctor accused of the murder of his wife. Was it suicide? Or did Dr Polkinghorne stage Pauline Hanna's death.

New & Exclusive. Explore the case of a prominent New Zealand eye doctor accused of the murder of his wife. Was it suicide? Or did Dr Polkinghorne stage Pauline Hanna's death.

New & Exclusive. Explore the case of a prominent New Zealand eye doctor accused of the murder of his wife. Was it suicide? Or did Dr Polkinghorne stage Pauline Hanna's death.

Gretchen Anthony's family grow suspicious when they receive odd texts from her phone, before things take an incredibly sinister turn.

Lauren Landavazo: As 13-year-old Lauren walks home from school, a loner is getting ready to ensure that if he can't have her, no one can.

A profile of child killer Roy Whiting, the convicted sex offender who abducted and murdered eight-year-old Sarah Payne.

After being picked up by NHS worker Duncan Bone at King's Cross in 1992, Karl Warne and Colin Lockett would murder their host at his flat.

A look at the clever new methods the police and public are using to catch criminals.

A specialist crime squad stop a mugger on a moped, intruders prowl the tiny streets of a model village and insurance cheats have their fake falls exposed.

When a grandmother is dragged to the ground in a robbery, her family unites to catch the culprit. Launderette owners plaster the streets with wanted posters.

Action-packed documentary following rapid response officers, the fastest cops in Britain, as they crack down on crime. Time is of the essence.

A detective's extraordinary ability to read body language brings a pair of international crooks to justice. A burglar tries to batter his way into a chip shop.

A trap is set to demolish a pair of bogus builders. An electric bike thief is far from a bright spark after leaving his own bike behind.

Detectives trail a burglar who they say is the 'most callous they have ever encountered'. An employee runs out of luck when stealing scratch cards.

A bank robber loses his cool - and the cash. There is double trouble when not one, but two cars are stolen from a family's driveway.

From nightmarish bad moves to our very own super-heroes, prepare to be stunned and amazed with action from the roads around the world as we've got it all Caught On Dashcam.

The story of 22-year-old Emma Baum, who was savagely battered to death by her ex-boyfriend David Davies in a row over access to their child.

Killer: A Fatal Vendetta: The 2019 murder of Raymond Cullen sparked an investigation, where forensic and digital evidence exposed a shocking, calculated plot behind his death.

When a body is found in woodland hours after an elderly couple are reported missing, residents in the village are shocked that there's a killer in their midst.

the mysterious 1986 disappearance of estate agent Suzy Lamplugh from Fulham, London.

the mysterious 1986 disappearance of London estate agent Suzy Lamplugh.

The daughter of one of Britain's most dangerous women reveals how her mother's brutal murder spree has affected her life.

The wife of serial killer Peter Tobin reveals her terrifying first-hand account of his violence, adding a new layer to the story of his gruesome murders.

A look at the Welsh serial killer known to some as The Wildman, who got four life sentences for a string of gruesome murders and sexual assaults.

The Saturday Night Strangler: Thirty years after three gruesome murders, familial DNA and the exhumation of a body finally closes the case.

A family are found dead in an Essex farmhouse. Police initially suspect a murder-suicide, until the surviving son's behaviour starts to raise eyebrows.

Jeremy's mammoth trial divides the public. He alleges his sister committed the murders, but a crucial piece of evidence contradicts his story.

XXXtentacion: Crime scene investigators examine the tragic death of rising rap star XXXTentacion.

A profile of the serial killer who found himself at the center of New York's biggest manhunt after a vicious shooting spree that left six dead.

In 2004, Joe O'Reilly murdered his wife and made it look like a burglary gone wrong. Before being caught, he even appealed for information on TV.

Just 15, Harold Jones was too young to hang for murder in 1921. Could he have become notorious 60s serial killer Jack The Stripper.

Lewis Daynes: A case highlighting the dangers of online grooming, 14-year-old Breck Bednar was lured to a flat before being killed by a fellow teenager.

Documentary following the work of Britain's police dogs in real operations, sniffing out everything from drugs and weapons to counterfeit money. Ken Stott narrates.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

Action-packed documentary following rapid response officers, the fastest cops in Britain, as they crack down on crime. Time is of the essence.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

It is journey's end for a pair of jokers who think to steal a bus. There is a battle of wills when a bartender confronts a man stealing her tips.

Who has been stealing from an elderly woman - her carers or her kin? A gang of international bag thieves are brought down to earth by the Aviation Crime Squad.

A shopkeeper tears the balaclava from his attacker, capturing vital evidence. We find the truth behind the ghostly disappearance of items from a locked house.

From epic road rage to instant karma, the consequences of a mid-life crisis, treacherous weather and construction chaos - we've got it all Caught on Dashcam.

A fugitive from the United States murders one British police officer and tries to kill two more, sparking a nationwide search.

The story of a young wife and mother-of-four, murdered ferociously by her controlling husband and an accomplice.

A Killer in the Family: True crime series putting murders under the microscope and exploring how forensic science helped investigators solve them.

Sky Original exploring the tragic stories of numerous young travellers who have died under mysterious circumstances on the remote backpacking Thai island, Koh Tao.

How police used CCTV, eyewitness statements and a public appeal to find the killer of a 28-year old woman, found dead on Nottingham's streets.

Debbie Buxton: While walking her dogs at a local beauty spot, Debbie Buxton is killed in a frenzied and unprovoked attack by David Bond.

The horrific case of Georgina Edmonds, a pensioner and grandmother who was bludgeoned to death by Matthew Hamlen.

For Richard Kuklinski, crime was his way of life. As a professional murderer, his unusual methods led to a disturbing nickname, The Iceman.

A chilling look at the man responsible for one of the biggest police investigations in Bristol - the cold-blooded murder of Joanna Yeates.

Murder on the Island: Experts analyse sand found in a car when a man goes missing, which leads them to a body and a twisted murder case.

The quiet town of Hexham, is rocked when news spreads that 15-year old Holly has been stabbed to death in an alleyway.

Jeremy's relationship with his parents comes under the microscope, revealing possible motives for the murders. The tabloids hunt his girlfriend, Julie.

Bamber is imprisoned for life, but decides to challenge his verdict and clear his name. A band of campaigners and internet sleuths support him.

A look at the lives and crimes of a duo of cousins who, together, took the lives of 10 girls and women aged between 12 and 28.

When Mary Gough was found dead in 2001, her husband appeared shocked before his web of lies and deeply sinister intentions were brought to light.

Found guilty of shooting a PC during a burglary in 1952, Derek Bentley hanged for murder. His execution would help to change the law.

A family's worst nightmare occurs when 16-year-old Becky Watts goes missing, and is found dead days later, murdered by her own stepbrother.

Documentary following the work of Britain's police dogs in real operations, sniffing out everything from drugs and weapons to counterfeit money. Ken Stott narrates.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they pull over motorists for a variety of suspected offences.

A man walking on the motorway inadvertently leads police straight to a bust and a sheep runs amok.

Action-packed documentary following rapid response officers, the fastest cops in Britain, as they crack down on crime. Time is of the essence.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

Thieves fleece an elderly couple in their hour of need. Locals bring the village stocks back into use when thieves steal from a roadside stall.

A thief riding a stolen motorbike is brought down to earth by a copper on two feet. A car thief is scared witless when he faces the vehicle's owner.

A police officer's intuition stops an escaped convict in his tracks. A jeweller is robbed as his wife watches on her phone.

From epic wipe-outs to scandalous scammers, height restriction mishaps and pedantic pedestrians - we've got it all Caught on Dashcam.

Jailed for the dreadful murder of a children's author, Ian Stewart receives a second conviction for the death of his wife, six years earlier.

The horrific case of Georgina Edmonds, a pensioner and grandmother who was bludgeoned to death by Matthew Hamlen.

The Saturday Night Strangler: Thirty years after three gruesome murders, familial DNA and the exhumation of a body finally closes the case.

Sky Original exploring the tragic stories of numerous young travellers who have died under mysterious circumstances on the remote backpacking Thai island, Koh Tao.

In 1981, detective Mike Southwell investigated a missing persons case that contained one of the grimmest discoveries in British police history.

Ron Browning: In 2015, a bizarre home invasion leaves 69-year-old pastor Ron Browning dead when he opens his door to 19-year-old Camille Brown.

The story of Valerie Graves, who was killed in a horrific attack just days after Christmas while house-sitting a million-pound house.

When police in Colorado interrogated Richard Paul White about the murder of his friend, he began confessing to even more horrifying crimes.

A look at the convicted double-murderer responsible for taking the lives of Becky Godden-Edwards in 2007 and Sian O'Callaghan in 2011.

The Freezer Murders: Experts analyse the bodies of two women found in a freezer. Their untimely deaths would be linked to one vicious predator.

Debbie Buxton: While walking her dogs at a local beauty spot, Debbie Buxton is killed in a frenzied and unprovoked attack by David Bond.

Letecia Stauch reported that her 11-year-old stepson hadn't come home, but what followed was a trial of deceit, secrets and murder.

Deep in debt, Michael Danaher had written a list of famous and wealthy targets, but his plans would result in vicious murder.

The story of the savage serial killer who took the lives of over 21 victims and left their bodies strewn across freeways in California.

In 2005, Farah Swaleh Noor's body parts were found in a Dublin canal. Soon, his partner and her daughters came under the microscope.

In 1955, Ruth Ellis hanged for the murder of her estranged lover. But what would her punishment have been today.

A dangerous sexual predator, John Cannan murdered one young woman just days after his release from prison, and is suspected of many others.

Documentary following the work of Britain's police dogs in real operations, sniffing out everything from drugs and weapons to counterfeit money. Ken Stott narrates.

The police get way more than they bargain for when they pursue a fleeing driver, then meet one of the drunkest men you'll ever see.

A runaway driver clocks huge speeds as he flees from police, a motorcyclist goes head first through a car window and a man suffers an asthma attack - or does he.

Action-packed documentary following rapid response officers, the fastest cops in Britain, as they crack down on crime. Time is of the essence.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

A bizarre burglar commits many crimes in many disguises. A fuel thief flees with the petrol station owner clinging onto his car.

A punchy pensioner's reaction is a surprise to himself, as well as his mugger. A man ploughs his car into a family home but denies being the driver.

The famous Flying Squad chase old-school crooks known as 'the manhole men'. An inquisitive llama hastens the downfall of a farmyard felon.

From the terrors of night driving to perfect family pranks, dicey weather for drivers and parking headaches - we've got it all Caught on Dashcam.

After striking up a friendship in prison for previous murders, Stephen Unwin and William McFall's release had awful consequences.

The story of Valerie Graves, who was killed in a horrific attack just days after Christmas while house-sitting a million-pound house.

Murder on the Island: Experts analyse sand found in a car when a man goes missing, which leads them to a body and a twisted murder case.

Sky Original exploring the tragic stories of numerous young travellers who have died under mysterious circumstances on the remote backpacking Thai island, Koh Tao.

DNA left on a cigarette butt leads investigators to the brutal killer of 84 year-old gun enthusiast Kenneth Speakman.

Matthew Shepard: When Matthew accepts a ride home from two men, his case makes headline news when he is tortured and left for dead in a hate-fuelled attack.

Divorce proceedings take a fatal turn when a wife teams up with her lover to get her husband out of the way for good.

Billy Mansfield Jr murdered at least five victims, but investigators suspect the extent of his serial killing is still to be revealed.

A profile of one of the most prolific serial killers in history. With an estimated victim-count of 250, what drove his horrific crimes.

Murder in the Woods: When 13 year-old Lucy is reported missing by her mother, police and forensic investigators begin the painstaking search for the truth.

The Pembrokeshire Murders: In 1989, two bodies were found in Pembrokeshire - and the answers lay in the forensics, as a shocking truth was revealed.

In 2000, Thomas Cressman was killed in the flat that he shared with Jane Andrews, a former royal dresser who fled the scene.

The story of two killers who targeted young girls and sex workers for their own twisted pleasure. Descriptions of sexual violence and child abuse.

A supposed violent break-in - which left Catherine Nevin's husband dead - was initially seen as a robbery gone wrong. until police dug deeper.

Fred Dinenage reflects on the time he spent with the notorious Kray twins in the 80s, and meets some of the gangsters' associates.

A fugitive from the United States murders one British police officer and tries to kill two more, sparking a nationwide search.

Documentary following the work of Britain's police dogs in real operations, sniffing out everything from drugs and weapons to counterfeit money. Ken Stott narrates.

A driver flees a late-night crash scene; a chainsaw-wielding biker attracts police attention; and one of the weirdest breakdowns you'll see.

A trucker unleashes carnage on the motorway, an obnoxious drunk hassles police and a man who looks like a chimney sweep needs police help.

Documentary series charting the exploits of the City of London police, charged with safeguarding the Square Mile at the heart of the crime-ridden capital.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

Documentary following the men and women who help keep motorists safe on some of the most perilous highways and byways of New Zealand.

A cruel conman convinces a vulnerable woman to hand over her cash. A reptile rescue centre falls victim to a slippery creature of the two-legged variety.

A ruthless criminal gang go on a rampage, with both police and the public under attack, a phone snatcher foils his own escape and cars go up in flames.

Dopey thieves manage to trap themselves inside their own crime scene and a bag for life makes a poor disguise for an armed robber.

From windy weather wipe-outs and the most villainous of drivers, to moments the police would rather you forget - we've got it all Caught on Dashcam.

Thirty-two years later, a convicted killer serving life for manslaughter is found to be guilty of having committed a second murder.

Divorce proceedings take a fatal turn when a wife teams up with her lover to get her husband out of the way for good.

The Freezer Murders: Experts analyse the bodies of two women found in a freezer. Their untimely deaths would be linked to one vicious predator.

Known as The Railroad Killer to some, the serial killer is thought to have taken the lives of more than 23 victims before his execution in 2006.

It took 18 years to identify Melissa Halstead after her torso was found in a Rotterdam canal. But detectives never stopped working to catch her killer.

Celine Figard: 19-year-old Celine accepts a ride from a lorry driver, but never makes it to her destination. Ten days later, her body is found.

The story of a 15-year-old from Leicestershire, who was groomed by a man she met online before being lured to her death in 2015.

After Jarrae Estepp's body was found at a recycling centre, police discovered that her murderer, Steven Dean Gordon, had killed before.

A profile of the serial killer who was sentenced to life in prison after the senseless murders of two men and two police officers in 2012.

When a body is found in woodland hours after an elderly couple are reported missing, residents in the village are shocked that there's a killer in their midst.

How police used CCTV, eyewitness statements and a public appeal to find the killer of a 28-year old woman, found dead on Nottingham's streets.

XXXtentacion: Crime scene investigators examine the tragic death of rising rap star XXXTentacion.