File on 4 Folgen

As controversy rages around whether the Bitcoin bubble is about to burst, File on 4 investigates the mystery of the missing Bitcoin billions.In 2014 one of the world's biggest Bitcoin exchanges - Mt Gox - suddenly stopped trading and filed for bankruptcy. It then announced that thousands of Bitcoins with a value of almost half a billion pounds had gone missing, leaving customers out of pocket and wondering what had gone on. For a while that remained a mystery, but recently US investigators have revealed that another exchange was involved - and there had been a huge Bitcoin theft... What transpires is a murky transnational tale spanning Russia, Europe, Japan and the United States. In a case which shines a light on the darkest corners of online trading Geoff White tells the story of the real-life digital crime drama which shocked the cryptocurrency world. Reporter: Geoff White Producer: Nicola Dowling Editor: Gail Champion.

The Police and the Crown Prosecution Service have been accused of failing to disclose important information in several recent high profile sexual assault cases.But Allan Urry asks if the current disquiet about disclosure should also extend to the Magistrates' Courts where almost all criminal cases start off. Some defence lawyers say evidence that could be helpful to their clients' cases is being with-held and are they're concerned that justice isn't always being served.Reporter: Allan Urry Producer: Alys Harte Editor: Gail Champion.

Can the NHS afford to run and replace its ageing hospitals? Many hospitals are crumbling and have huge backlogs of required maintenance work. It affects patients - sometimes life-saving operations are being cancelled due to lack of capacity - or practical problems such as leaks or faulty air conditioning.Money from capital budgets has been used to plug gaps in day to day spending - meaning an ever growing black hole of building work is backing up. So where to get the money?The Government is adopting plans which would encourage NHS trusts to sell off spare land and try to get money for new buildings from the commercial sector. But private finance initiatives are no longer an option. Trust deficits make borrowing difficult and hospital leaders say its difficult to get access to the money they need - like wading through treacle, one says - because of perverse rules and regulations. So how should we pay for much needed life support for our hospitals?Reporter: Lesley Curwen Producer: Rob Cave Editor: Gail Champion.