An unlikely informant holds the key to justice when 59-year-old antique dealer Michael Griffiths is targeted and brutally killed in his home.

Bobby Joe Long is on Florida's death row for abducting, sexually assaulting and murdering at least 10 women in the Tampa Bay area during an eight-month period in 1984.

A look at what drove a man like Ahmed Al Khatib to murder his wife. Ahmed blamed the influence of evil spirits when he plotted to get away with murder.

John George Haigh dissolved his victims' bodies in acid and poured the sludge down the drain. Fred Dinenage investigates his gruesome murders in 1940's London.

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.

Police are frustrated by a lack of evidence until a startling admission finally leads them to the killer.

The Thames Valley Police provide fascinating insight into car crime and its prevention, as well as videos of dangerous drivers in action.

Simon and Chris tackle a car thief in the snow, later their arrestee's drug stash is found in his nether regions, and someone in the custody suite fancies an attempt to nick the takings.

A berserk bike-rider needs restraining; Canadian pedestrians with blessings and ginger beer; a swinging 1960s party bus.

A serious crash involving a signal truck and a drunk driver; a sweet-talking Russian cyclist loses her way; Granny learns that driving in first gear is not good for your car.

When a sergeant stops a car, his partner notices a weapon in the car. Two senior constables attempt to deal with a speeding car with bald tyres and a toddler sitting in the passenger footwell.

A traffic cop is given a hard time but after Senior Constable Russel Warner stops a driver, he gets a reaction like none other he's seen before. Senior Constable Jerome Murnane stops a car with a couple of stoned occupants inside.

Motorway patrol officers are kept busy by repeat offenders and aggressive drivers. Blown truck tyres and loud-mouthed lads only add to the chaos.

A group of shoplifters find their luck has run out when they are caught in the getaway car. Duck tales unfold along the side of a motorway.

Officers contend with a Harley driver who isn't abiding by the road rules, and the world's fastest hedgehog.

In the Tasman District, Terry Richards and his colleagues are not going to wait long for the first traffic offence. An intoxicated motorist overlooks a full stop sign. It turns out he does not have a driver's license.

Officers suspect a Brazilian man is lying to them and the truth may lay in his bag. A Chinese student in a hurry attracts the attention of Biosecurity officers.

Things go from bad to worse for a young man when drugs are found in his bag and his fiancee is left further unimpressed by what is revealed next.

A bar owner fights back against bag snatchers and pickpockets; and three hapless teenagers burgle a house - unaware that the police are watching their every move.

The remarkable story of a police operation to smash a drugs ring and catch the dealers in the act.

We're on the road with Ted and Inca, as well as their specialist Dog Handler from Bedfordshire Police.

A glamorous 85-year-old millionaire is found stabbed in her basement, sending police on an international investigation that unearths devilish secrets, double lives and a killer no one saw coming.

A look at how police used CCTV, eyewitness statements and a public appeal to find the killer of a 28-year old woman, found dead on the streets of Nottingham.

When a teenager disappears without trace at a Kent train station, painstaking forensic evidence is used to unmask her killer.

The story of the I-95 killer, who brutally killed six men in 1994 before being executed three years later.

A profile of the two murderers who terrorised Britain in the 1980s with a string of attacks near railway stations.

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

Mitesh Patel from Middlesbrough presented himself as a well-mannered family man. But behind closed doors, his wife paid the final price for his violent outbursts.

The chilling story Genene Jones, a serial killer who worked as a nurse in Texas, where she killed many children and infants by injecting them with drugs.

A master manipulator is accused of the murder of his wife, and is eventually caught out by a polygraph test - and his own fiancée.

The story of 18-year-old Shana Grice, who was murdered by her ex-boyfriend after months of persistent and terrifying stalking.