Two teenage girls are arrested after a fight broke out in a nightclub. And the police also arrest a 61-year-old man who's never spent a night in the cells before.

This episode follows cases where alcohol and relationship tensions mix in a dangerous cocktail. Investigating Officer Lisa Hutchinson says nine out of ten cases can be of domestic violence.

Several elderly people have been sexually assaulted in a graveyard. The police have a sample of an attacker's DNA from a previous crime scene, and arrest a young man. Will his DNA match?

The police have a complex case to deal with when a man comes to them admitting that he tried to set up a meeting for sex with a 12-year-old girl that turned out to be a sting operation carried out by online vigilantes.

Bedfordshire Police are called to Dunstable Town Centre, where a man has driven a car into a group of revellers outside a kebab shop before fleeing on foot. With a suspect on the loose, cameras follow every twist and turn of the investigation.

A man lies dead in a Peterborough park. The position of his body raises intense suspicions but rigor mortis has set in and the trail of evidence is going cold. Detectives are called in to investigate.

Detectives hunt for two rapists. They race to stop a recent offender from striking again. And can new cutting-edge forensic techniques help them catch a rapist who has evaded justice for 10 years?

An experienced officer from the Bedfordshire Police Internet Child Abuse Investigation Team investigates an area of criminal behaviour beyond anything she has tackled before

Detectives race to the scene of a stabbing in broad daylight. Cameras follow every twist and turn of the investigation, revealing the real-life stories behind the familiar headlines about knife crime.

Cameras follow every twist and turn of a real-life police investigation as detectives attempt to catch a suspected drug trafficker before he can escape on a flight to Spain

The cameras follow an engrossing and surprising real-life investigation into a reported burglary of antiques worth a quarter of a million pounds from a country estate.

Detectives investigate the sudden death of a 48-year-old woman in Cambridgeshire, and the hunt for clues takes the investigation right across Europe as cameras follow every twist and turn in the investigation.

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

Bedfordshire Police investigate a series of armed robberies that all involve two men wearing crude balaclava's fashioned from items of clothing threatening their victims at knife-point.

The number of domestic abuse incidents reported to Bedfordshire Police has soared to over 200 a week in recent years. Two such incidents show the difficulties officers have investigating these cases.

The return of the documentary in which more than 60 cameras are used to follow the work of Bedfordshire Police, from the cells at stations to the operational heart of major investigations. A small town near Luton has been plagued with an outbreak of teen criminality, and DS Emma James and DC Cathie Layton pull a 22-hour shift to find the evidence against a young man accused of robbery and assault. He denies everything and paints himself as the victim. Will they uncover enough to charge, or will he be released?

Bedfordshire Police confront issues thrown up by the mass movement of people across Europe. A man travelling with a young woman on a one-way ticket from Bulgaria is stopped at Luton Airport. Officers from the National Crime Agency believe that he - and another man who has come to the arrivals gate to meet them - may be bringing the woman into the country unlawfully. The story takes a surprising twist when one of the men they have arrested claims he is her father. Cameras follow every twist and turn of the case, as detectives try to discover the truth when so much is obscured by different languages and culture.

The police release a young man who's been accused of a vicious assault when he gives his mother as an alibi. But when she fails to support his story they have to try to find him again...

DC Cathie Layton investigates the case of a man who is alleged to have assaulted a taxi driver and stolen his keys. But her instinct tells her that all is not what it seems...

A teenager disappears from hospital after being brought in with serious injuries that suggest she's been tied up and assaulted. Bedfordshire Police investigate.

A distressed woman arrives at Luton Police station, where officers have to tell her that her 76-year-old husband is under arrest following allegations of historic child sex abuse.

This episode opens with a young man accidentally dropping a large quantity of cocaine from his jacket pocket outside a petrol station - all caught on CCTV. On the case are hard-bitten Detective Constable Colin Knight and fresh-faced Police Constable Oly Tomlinson, who joined the team three months earlier. They get off to a promising start, tracking down the owner of the vehicle the passenger was travelling in. DC Knight brings in his chief suspect for questioning and discovers that, just like the man in the CCTV footage, he has a striking tattoo on the right side of his neck, but could it be a case of mistaken identity? Also brought in to the custody suite is Darren, a man arrested on suspicion of theft of meat from Marks & Spencer. As he is booked into custody it soon becomes apparent he is a heroin addict. Sympathetic Custody Sergeant Pete Fitz-Gibbon tries his best to persuade him to stay strong and get clean. Both cases provide a stark picture about the dark world of young people caught up in a cycle of drug addiction and crime in Luton and the challenges facing the police as they tackle it.

It's Saturday night in Luton, and Bedfordshire Police are dealing with drunken domestic disputes and a booze-fuelled fight. Police Constables Leanne Turner and Andy Parsons are sent out to investigate an alleged assault against a vulnerable and fragile 75-year-old man in a domestic dispute. The suspect is the man's private carer and has been living with him for the past seven years. When he made the 999 call, the elderly man alleged that he had been slapped in the head with an open palm. But when they arrive, PCs Leanne and Andy are confronted with a distressed victim who insists he does not want them to pursue the matter and who begs them to leave. At the police station, a Polish man arrested for a drunken row with his partner is admitted into custody. He's initially brought in for a 'breach of the peace' - to remove him from the situation and allow him to sober up and cool off - but things take an unexpectedly sinister turn when he whispers to the custody sergeant that he will kill his wife the following day.

DS Simon Hancock and DC Cathie Layton have 24 hours to interview two men who they suspect are behind a string of knife-point robberies. And neither man knows what the other's saying...