Is there a conflict of interest when public servants take private sector jobs?
Allan Urry examines claims of a crisis in hospital accident and emergency services.
Facing massive job cuts, will the Border Agency be able to protect the UK's frontiers?
Do the complex financial products banks still offer threaten another meltdown?
Why the UK's elderly care sector is facing a financial crisis.
Should it be made simpler to end the life of patients in a vegetative state?
Have taxpayers lost billions of pounds in the secretive resale of PFI contracts?
Allan Urry investigates claims that Iran has been stepping up its support for terrorism.
When a plane crashes, does the investigation always get to the real reasons?
Can memory evidence alone deliver justice in sex abuse cases when claims go back decades?
Is the NHS doing enough to combat the crisis in organ donations? Allan Urry investigates.
Fran Abrams investigates the corruption that lay behind the Mubarak regime.
After the first UK corporate manslaughter conviction, File on 4 examines safety at work.
Family doctors are key to the Government health reforms, but how efficient are our GPs?
Why were flights grounded by snow? Do Britain's airport woes run deeper than bad weather?
Andrew Hosken examines claims of a dirty tricks campaign over Shaken Baby Syndrome.
Are police doing enough to tackle corruption in their ranks? Allan Urry investigates.
Is religious intolerance growing among Britain's ethnic minorities?
How will the mortgage freeze hit Britain's already battered economy?
Is the government making it almost impossible to sue a drug company?
Angus Stickler investigates fraud involving European regional funding schemes.
Is enough being done to protect the elderly in care homes? Fran Abrams investigates.
Why do Britain's railways cost more than elsewhere in Europe? Allan Urry investigates.
Can charities be trusted to run public services well and honestly? Gerry Northam reports.
How British Somalis are recruited to fight for the banned Islamist group, al-Shabaab.
Michael Robinson reveals loopholes which let big businesses slash their UK tax bills.
Why should we want more foundation hospitals when so many are in financial trouble?
Allan Urry investigates concerns about the role of insolvency practitioners.
Can Afghan forces guarantee the country's security when British and other troops pull out?
How well does the Court of Protection safeguard the finances of the old and vulnerable?