Police officers have made unannounced visits to two clinics run by Britain's most successful test-tube baby doctor.

John Sweeney investigates the death of ex-KGB spy and Russian dissident Alexander Litvinenko, poisoned and killed by radioactive Polonium 210 in November 2006.

Shelley Jofre investigates how one of Britain's biggest drug companies misled doctors into prescribing the anitidepressant Seroxat to teenagers.

Jeremy Vine goes on a whistle-stop tour of the country to see how people deal with anti-social behaviour and violent crime in their areas.

In a Yorkshire town, reporter Vivian White discovers a series of cases in which elderly people have allegedly been unsafe and unprotected in nursing homes.

As the Iraq war approaches its fifth year, army families angered by what they see as public apathy and government embarrassment, speak out for the first time.

Shelley Jofre investigates the claim that an estimated 75,000 NHS workers were victims of violent assaults by patients last year.

Tears, rows and recriminations as Panorama reporter Justin Rowlatt, his wife and three kids spend a year without their car, their tumble dryer and their cheap flights abroad in Go Green or Else!

Stella Moore's daughter Tania was brutally killed by the man who stalked her relentlessly. She asks why women can still be murdered by stalkers.

A report on the torture of seven Iraqi civilians in 2003 while in British custody in Basra and the subsequent investigation.

Investigation into the increasing numbers of British soldiers returning from Iraq going AWOL rather than face life in the British Army. Featuring the stories of young men who return from battle so scarred and disillusioned they vow never to return even if it means going on the run.

Investigation into how the deaths in Corfu of British children Bobby and Christi Shepherd has raised serious doubts about the travel industry's safety standards.

A reporter goes undercover as a prison officer for five months at Rye Hill high security prison, and discovers a world of bribery, corruption and drugs.

Can you trust your favourite TV shows? In the wake of recent scandals about how broadcasters use premium rate phone lines, Panorama investigates claims that some of Britain's best-loved programmes have been cheating the public.

Following the conviction of five men accused of conspiracy to cause explosions, evidence that MI5 failed to pass on details linking them to the 7/7 suicide bombers.

Investigation into the murder of cricket coach Bob Woolmer, with access to the man leading the hunt for his killer, police deputy commissioner Mark Shields.

Using shocking undercover footage recorded in two major hospitals, an investigation into alleged serious failings in UK maternity services.

An investigation into the increasing separation and segregation between Muslim Asians and whites. Vivian White reports from a northern English town where the communities feel divided by skin colour, religion, culture, and language.

John Sweeney investigates the Church of Scientology and allegations made by former members and relatives of current members. However, during the course of his investigation he soon finds that he has become a target of the Church.

With twelve cities now completely covered by wireless (WiFi) computer networks, and many secondary and primary schools using WiFi in the classroom, Paul Kenyon investigates claims that the electronic smog of modern living can cause long-term health effects.

A report on British woman Ann Hathaway, wife of the alleged head of one of Sicily's biggest Cosa Nostra clans, who was recently convicted for Mafia association.

Shelley Jofre investigates whether Britain's single biggest loss of military life in over two decades could have been avoided, and reveals a series of potentially-catastrophic faults with the RAF's ageing fleet of spyplanes.

Investigation into allegations of massive corruption at the heart of the biggest arms deal in history between Britain and Saudi Arabia, and into claims that when the Serious Fraud Office got close to uncovering it the government forced it to drop the probe.

In a unique social experiment, TVs, computers and games consoles are taken away from a class of seven- and eight-year-olds for two weeks and a psychologist assesses the impact on their behaviour and performance at school.

As he officially becomes the new prime minister, reporter John Ware investigates Gordon Brown's relationship to the truth and his involvement in New Labour's past.

What happened after the cameras went away? Panorama returns to previous investigations to report on developments. Find out what NHS bosses did after Panorama filmed undercover in two maternity units, and how John Sweeney found unwanted international fame after his confrontation with Scientology.

John Sweeney reports on child welfare in Norfolk.

On 21st July 2005, a group of suicide bombers set out to bring death to the capital. Panorama talks to the bus and tube passengers who thought they would die that day.

As more offenders are being tagged as an alternative to custody, reporters go undercover to reveal 'life on the tag' from inside one of the government's key law and order schemes.

The Government has no idea how many immigrants enter Britain illegally, but how many enter lawfully? Panorama visits some of the immigration hotspots.

Investigation into websites that show videos of young teenagers being bullied and assaulted, which feature advertisements for some major British companies.

Kate Silverton looks at how much the summer floods have cost the UK and how much more we are prepared to spend to defend the country from future downpours.

As the number of youths killed on the streets of London this year rises to 17, with more young victims across the country, Panorama profiles two 15-year-old boys on the fringe of gang culture. The programme offers a rare insight into the confusing and dangerous world of the inner city teenager.

Six weeks after the release of the BBC's Alan Johnston, Panorama goes back to Gaza to examine what's become of the place now that the world has looked away again.

An investigation into the growing use of Second World War re-enactment events as a forum for extreme right-wing views by Nazi enthusiasts.

Investigation into why nearly a million young people in the UK are not in work or education. With the figure reportedly at a ten-year high, the programme challenges four young men to get jobs and break the cycle of unemployment.

Paul Kenyon traces the criminal gangs behind the illegal and hazardous migration routes which thousands of Africans are desperate enough to try to get into the UK.

There may be more police officers than ever, but what are they actually doing? Frontline officers tell Panorama they find it increasingly difficult to do their job effectively and claim they're being undermined by paperwork and pressure to meet government targets.

Someone is added to the DNA database every minute, including people who haven't been charged with any offence. It can solve crimes and free the innocent. So shouldn't all of us now be on the database whether we like it or not, or should we pull back? Vivian White investigates.

Investigative report. After the 7/7 bombings, the government vowed to silence Muslim extremists. Two years on, radical group Hizb ut-Tahrir remains legal. Shiraz Maher, a former member of Hizb, explores what needs to be done to win the hearts of Britain's angry young Muslims.

With mortgages regularly being sold to people on benefits and some home loans being given at up to sixteen times the applicant's salary, Panorama finds out if the misselling of mortgages to those with bad credit records could cause a financial crisis in Britain similar to that in the US.

Barack Obama is a political sensation in the States - an African-American with a real chance of becoming President next year. But although he is promising to unite the nation, can he overcome America's racial divisions and become the country's first black President? Hilary Andersson investigates.

With England set to bid for the 2018 World Cup, Panorama investigates allegations against FIFA and asks if England can expect fair play from football's ruling body.

For the first time, BBC Correspondent Alan Johnston tells the full dramatic story of his kidnap by militant Jihadists in Gaza.

Raphael Rowe investigates claims that the forensic evidence which lead to the conviction of Barry George for the murder of Jill Dando in 2001 was unreliable and misleading.

Following a unit of 35 British soldiers on the frontline in Afghanistan, a six-month tour which left one dead and 12 seriously wounded.

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Investigation into why Madeleine McCann's parents have found it so hard to shake off the suspicion that they somehow had a role in her disappearance.

Investigation into the case of a woman convinced that the powerful anti-psychotic drugs prescribed for her father's dementia were doing him harm, and the disclosure of the results of a long-term scientific study which shows that she may have been right.

Using combat footage shot by the soldiers themselves, the story of the last and bloodiest British fight in southern Iraq - the battle for Basra Palace.

Reporter Jane Corbin examines the dark heart of Basra. Once Iraq's most cosmopolitan city, it is now a place where murder and corruption is rife.