A single text message, hidden amongst thousands, nails a serial fraudster; and an extraordinary surveillance operation leads straight to the kidnappers – and their hostage.
A regular pair of pyjamas reveals the shocking true identity of an attacker who left his victim for dead, and a bright yellow baseball cap puts a daylight robber behind bars.
How a discarded scrap of paper found in a household bin helps convict a cold-blooded killer; and a distinctive mole holds the key to tracking down a dangerous and predatory attacker.
How a single glove reveals the identities of a prolific and violent gang, and an image of a distinctive ponytail solves a hi-tech bank heist.
A plastic bag heat sealer convicts an online drug trafficker, and a casual chat with a criminal, plus a map, join the dots to catch three burglars terrorising a neighbourhood.
A scribbled name in a discarded notebook is the key to putting a dangerous driver behind bars, and the serial numbers on stolen bank notes crack the mystery of a dangerous gang wreaking havoc in the capital.
A wedding video helps crack the case of a teenage abduction, and an expired pilot's licence exposes a fraudster flying under the radar.
An everyday satnav is the final clue to put a pair of prolific animal thieves behind bars; and an anonymous letter holds the key to cracking the identity of a blackmailer on a mission to poison babies.
How an ordinary hoodie helps police finally take a vicious and dangerous attacker off our streets; and a standard satnav reveals the mastermind behind the biggest armed robbery ever to hit Devon and Cornwall.
How a distinctive deer stalker hat is the red flag to cracking a web of stolen bank cards; and one careless text message puts a dangerous stalker behind bars for the longest sentence in a police force’s history.
A distinctive sticker on a laptop finally links a man to a string of burglaries that had terrified an entire community, and a shiny copper hair dye puts a dangerous armed robber behind bars.
How a distinctive wallpaper pattern exposed the lies of a con-woman who claimed to be suffering from a rare cancer. And a hidden compartment in a car holds the key to convicting a gang of stealing hundreds of thousands of pounds from UK charities.
A grainy video from a petrol station forecourt helps convict a gang of cold-blooded killers, and a criminal’s mobile phone finally connects an unscrupulous gang targeting the vulnerable.
A simple business card reveals the true identities of a gang of con artists, and a ripped-up, handwritten note holds the key to locking away two murderers.
A discarded gun cartridge helps the police to convict a man who gunned down a fellow officer, and a packet of medication helps to lock up a gang of violent jewellery thieves.
A yacht is tracked by police as a gang uses it to smuggle deadly weapons into Britain, and a prison phone call helps jail a bank cashier for arranging to steal thousands.
A discarded cigarette butt gives police the proof they need to find the murderers of a young father shot and killed in broad daylight, and a used match found in a drainpipe identifies the arsonist who burnt a 400-year-old building to the ground.
An airport hire car helps bring a pair of international hitmen to justice after a private investigator is murdered, and a bottle of Caribbean rum convicts a prolific burglar.
A train ticket and a chance encounter help hunt down a pair of hi-tech international fraudsters, and a bottle of milk seals a case against a violent offender.
A bloodstained shopping trolley holds the key to solving a vicious assault, and a distinctive pair of curtains puts a phone thief behind bars.
A drug boss is put behind bars thanks to a paper trail from his dodgy property empire, and an observant cashier helps convict a fraudster who is posing as a police officer.
A mobile phone hidden in a bundle of clothes helps save a young woman from a forced marriage, and a burnt tea towel helps convict a gang of a callous shooting.
Stained bank notes hold the key to tracking down a brazen bank robber, and hidden-camera footage from a hi-tech sting operation helps snare a prolific gang of thieves.
A packet of wet wipes helps convict a driver responsible for a deadly hit and run, and a distinctive tracksuit puts a gang of ruthless thieves behind bars.
A travel card holds the key to convicting a violent offender after a spate of random stabbings. Police taser the man whilst he brandishes weapons on a public street. Also, a bureau de change receipt helps put a pair of thieves behind bars after they subject their victim to a terrifying ordeal.
A spent bullet casing holds the key to bringing two murderers to justice, and a hire car helps track down a thief who has stolen thousands from supermarket tills.
A thief who prowls for victims on social media is locked up thanks to the sheath of his knife, and a plea for help scrawled on a £10 note puts two kidnappers behind bars.
A plot to extort thousands of pounds from a casino is foiled by a high-stakes sting operation, and a discarded cigarette butt helps convict a man of indecent assault.
An elderly murderer is convicted after a cat-and-mouse chase with armed police. He had killed a man in a feud over garden clippings. And a fraudster is locked up after using dummy phone handsets to con high-street shops out of tens of thousands of pounds.
A car key helps crack a criminal conspiracy to steal luxury car parts, and a torch provides the proof needed to convict a man of violently assaulting a pensioner in a graveyard.
A fingerprint from an old break-in solves a murder at the same factory months later. Elsewhere, a DNA spray means police can finally apprehend a prolific motorbike thief.
A hotel guest book gives police the names of an international drug smuggling network, and thieves who stole £20,000 of food from a factory are caught out by a car number plate.
A fingerprint on a fish and chips wrapper places a gunman in a rural location miles from his home, and a man’s laptop reveals that he is behind a luxury gift card fraud.
A jacket recovered from a suspect’s home has the DNA of two stabbing victims on it, and a fingerprint on a getaway car number plate snares an armed robber.
Fingerprints found after a break-in and brutal beating are enough to convict a man of murder, and crooks who burgled a man's home and started using his credit card are caught by CCTV.
Blood spatters found on a trench coat belonging to a suspect in an unrelated case of armed robbery links a callous killer to the murder of a wealthy pensioner.
A few spots of the victim’s blood on a blue shirt convict a murderer, and a rapper incriminates himself when videos he posts online about his drug dealing are seen by the police.
A blood-spattered hammer is the key to charging the prime suspect in a murder case, and a drug gang is brought down when one detective focuses on how the product is packaged.
A USB stick with information about illegal drugs is found at a respectable businesswoman’s house, and police crack down on the conversion of guns designed to fire blanks.
A single piece of paper found on top of a hidden fax machine gives police the number of a shipping container used to smuggle millions of pounds' worth of drugs from Thailand.
A hammer contaminated with the DNA of both victim and killer helps police solve a murder investigation, and a burglar is caught after photographing himself at the crime scene.
A man is linked to a series of murders by a shoelace with his final victim’s DNA on it, and coded information in a spreadsheet reveals the perpetrator of a campaign of blackmail.
An ice pick is recovered from the roof of a pub and brings a murderer to justice, and an anonymous letter throws suspicion on a man who may be storing and manufacturing guns.
A car hidden deep within a scrapper’s yard unlocks the riddle of a suspected gangland shooting, and police secure the UK's first conviction for modern day slavery at a car wash.
A few specks of grey paint help to solve two brutal axe murders, and a bungling burglar is caught when his DNA is found on a rock used to smash a window at one of his break-ins.
A jacket left behind in a stolen car carries the DNA to prove who was driving the vehicle. And a witness gives police key evidence from 30 years ago to crack a cold-case murder.
A reclusive millionaire is found murdered in his home in west London, and police find hundreds of thousands of pounds in cash still there.
A fatal house fire turns suspicious two years on when it emerges the victim was visited by a stranger the night his home was destroyed. Will a plane ticket give a moment of proof?
When an unconscious man is stamped on, there’s no CCTV. But can a footwear specialist looking at the bruising on the body help identify the shoes worn by the killer?
When a child goes missing, police have few leads. They have a suspect but not enough evidence to prove anything. Eventually, a torn-up cheque gives them their moment of proof.
An organised crime gang supplying large quantities of drugs are almost impossible to uncover. But painstaking surveillance leads police to the kingpin, bringing down the operation.
Two people die in an arson attack on their home, but police can’t get a DNA profile from matches left at the scene. Then, an eagle-eyed detective clocks a problem with the CCTV.
When a missing woman is found dead, family and friends raise suspicions about her boyfriend. But police need hard evidence that he was involved. And they eventually get it.
Two men heading to a business meeting are kidnapped and forced to transfer a large amount of company money. Police unpick a web of calls and CCTV to find their moment of proof.
Police suspect foul play after a meet-up goes wrong. But it takes toxicology tests to reveal the deadly cocktail that convicts a killer.
Police are left confounded by a serial burglar’s Houdini-style disappearing act. But a single piece of information brings their game of hide-and-seek to a sudden end.
Two young women are shot dead in Birmingham on New Year’s Eve. But it takes an audacious undercover mission for police to infiltrate rival gangs and find the moment of proof.
When the search for a missing woman becomes a murder investigation, a baseball cap and DNA on a discarded beer can help detectives find her killer.
