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.