File on 4

Great Ormond Street Hospital in London has a global reputation for providing outstanding care to children with the most complex medical conditions who need expert help. The hospital, known as GOSH, boasts more specialist services for children under one roof than any other and employs some of the country's leading doctors to staff them. The vast majority of the 43,000 children who stay at GOSH every year receive care which befits its reputation. But when things go wrong, is the hospital being transparent about its failings and does it do everything it can to prevent mistakes being repeated? When serious mistakes happen hospitals are duty-bound to launch serious incident investigations to understand what exactly happened and report them to external bodies. But File on 4 investigates claims that in some cases the hospital has failed to declare serious incidents despite evidence of harm. Reporter Michael Buchanan began investigating how the hospital deals with errors after attending the inquest of 14-year-old Amy Allan, from North Ayrshire, who died following elective back surgery. Michael returns to Scotland six months later to investigate how the hospital responded to Amy's death and meets other families who say they cannot get the answers they're seeking. Producer: Ben Robinson Reporter: Michael Buchanan Editor: Carl Johnston

Usman Khan was released from prison in 2018 for plotting a terror attack. He'd undertaken two de-radicalisation programmes designed to turn him away from violent extremism. Yet despite efforts to rehabilitate him, Khan launched an attack near London Bridge - killing two people. It was the first of two violent attacks involving convicted extremists in a little over two months. So just how effective are schemes designed to de-radicalise offenders? For the first time, File on 4 hears from those at the heart of these programmes - the 'intervention providers' tasked with turning offenders away from violence. Some say offenders are able to cheat the system and convince the authorities they've changed their ways. So how can these intervention providers ever know when their work has been successful? The programme hears from a serving prisoner in a maximum security jail who says convicted terrorists are "gaming" the system by pretending to comply with "de-radicalisation" courses - and he warns that non terrorist offenders are being dangerously radicalised. Reporter: Adrian Goldberg Researcher: Luke Radcliff Producer: Helen Clifton Editor: Carl Johnston

When a video of one of the UK's biggest rap stars being attacked went viral, it marked the start of a series of events that left three young people dead. They died when tensions escalated between rival gangs in Tottenham and Wood Green in the north London borough of Haringey. File on 4 has been told the events that led to their deaths were triggered by an attack on a rapper called Headie One from the Broadwater Farm estate in Tottenham. Tensions were escalated via social media - violent tit-for-tat attacks filmed and posted on Snapchat and You Tube. Livvy Haydock hears the stories of those at the heart of this feud and from those whose lives it has devastated. Reporter: Livvy Haydock Producer: Oliver Newlan Editor: Carl Johnston

In January 2020, a British Airways flight from Athens to London issued a "Mayday" emergency call when the pilot flying the plane became incapacitated during a "fume event". The airline industry does not reveal how often fume events happen, but according to some estimates they occur every day on airlines worldwide.. They are thought to be caused by air containing chemicals from engine oil passing into the cabin. Pilots and cabin crew say that sudden fume events and long term low level exposure to toxic cabin air can make them seriously ill. In some cases they claim exposure to affected air has caused premature death. The industry insists that serious leaks of toxic gas into cockpits and cabins are relatively very rare, given the number of flights each day. And that no causal link between toxic cabin air and health problems has yet been proven. But the industry faces multiple court cases this year. On File on 4 one representative of the airline industry agrees to face questions on fume events, claims of a lack of transparency and claims that the health of hundreds of pilots, cabin crew and frequent fliers is being affected. We reveal confidential airline and Coroners' reports in connection with fume events and so called "aerotoxicity". We hear about pilots and crew who say they've been poisoned by toxic cabin air. And from scientists about research being done on potential links between airline cabin contamination and neurological health. Presenter: Mike Powell Producer: Paul Waters Editor: Andrew Smith

In recent years, betting companies have invested millions in Britain’s professional football leagues through sponsorship deals and blanket advertising campaigns. The ever-increasing collaboration between the two has been labelled as the ‘Gamblification of professional football’ – a term which, for many, raises serious concerns. File on 4 puts this controversial relationship under the microscope, asking if football’s public endorsement of gambling companies is helping to normalise, even encourage, a pursuit which, for those most vulnerable, can lead to addiction, financial devastation and suicide in extreme cases. In addition, we investigate the failure of gambling companies to stop millions in stolen money from being wagered on the beautiful game by customers involved in criminality. Firms should carry out anti-money laundering checks when large sums of money are lodged, won or lost by customers. But File on 4 has learned that some betting companies ignore these obligations, opening the door for the proceeds of crime to be gambled - and potentially laundered. In hearing the testimony of industry whistle-blowers, and that of problem gamblers who stole hundreds of thousands to fuel their addiction, we lay bare the sometimes darker matters associated with the fusion of the football and gambling industries. Reporter: Paul Connolly Producer: Paul Grant Editor: Carl Johnston