File on 4 Investigates Episodes Available now

Default by Design?
Predatory or prudent? Has RBS been playing fair with its business customers?

Liquid Assets
As water company bills rise, Lesley Curwen investigates where the money goes.

Chemical Weapons
Is enough being done to prevent rogue states and terrorists acquiring chemical weapons?

A Healthy Market?
What do we know about the deals struck with private companies to run parts of the NHS?

Up to the Job?
Is the government's flagship Work Programme working? Gerry Northam investigates.

Deadly Drugs
What's behind the rise in deaths among those who have taken the drug ecstasy?

What Price Social Housing?
ÃÛÑ¿´«Ã½s at risk? Are housing associations trying to gamble their way out of a crisis?

The Syrian Connection
Who are the British jihadists fighting in Syria and could they pose a threat to the UK?

HS2: Winners and Losers
Who are the winners and losers from high-speed rail?

Electricity Prices: A Shock to the System?
What will the government's plan to produce more low-carbon energy do to our fuel bills?