File on 4

Allan Urry investigates the world of illegal arms brokers and asks if Britain's weapons regulations are as effective as the Government claims.

Who should manage England's motorway and major road network? With ministers wanting more private sector involvement, we ask: is it the end of the road for the Highways Agency?

They are known as zombie companies - barely surviving and only able to pay off the interest on their debts. Hugh Pym investigates what effect they are having on the UK economy.

Fran Abrams asks why, after years of scandals, reports and Government promises, patients with learning difficulties are still being failed by the health service.

Scotland is merging 8 constabularies into a single national police force. Why is England and Wales opting for 41 local Police and Crime Commissioners heading separate forces?

As the Government's plans for West Coast rail collapse in chaos, Michael Robinson asks whether outsourcing complex public services really can deliver the big savings promised.

A hardline branch of Islam, the Salafist movement has been associated with recent violent protests in Arab Spring countries. Jenny Cuffe investigates what threat it now poses to democracy in the region and also its growing influence in Europe.

Alcohol fraud costs the exchequer more than a billion pounds a year. Allan Urry investigates how criminals have been able to gain a foothold in the legitimate drinks market.

How far is too far in intelligence gathering? Jane Deith meets women suing the Metropolitan Police claiming they were duped into relationships with undercover officers.

With a spike in the number of British and US troops being killed by their Afghan allies, have coalition commanders been slow to identify the warning signs of Taliban infiltration?

After years of suspicion, diesel emissions have now been officially linked with cancer. Julian O'Halloran asks why more hasn't been done to curb this form of pollution.

As tuberculosis continues to rise in Britain, should the NHS do more to target migrants from high-risk countries? Gerry Northam reports.

Research shows that one in eight British soldiers returning from combat is at risk of displaying violent behaviour. Some of the aggression is directed towards the soldiers’ families – leading to concerns of domestic violence among the military. Jane Deith examines the impact of violent behaviour on the soldiers and their partners and asks is the Army doing enough to tackle the problem.

Millions of pounds in European regeneration grant cash is earmarked for UK regions, so why are some areas struggling to get their hands on the money? Allan Urry investigates.

On the eve of the Olympics, Chris Bucker investigates the extent of sexual abuse of athletes across sport and asks if enough is being done to tackle the problem