File on 4 Investigates Folgen

Police forces in England and Wales are to get an additional fifteen hundred firearms officers to help protect the public from terrorism and organised crime. Most of the new officers will be trained within the next two years after the Prime Minister, David Cameron, set aside £143m to boost the country's armed response capability. But is it enough to meet the challenges they face? The number of firearms officers fell from nearly seven thousand in 2009/10 to under six thousand in 2013/14. And, despite the extra funding, the Police Federation is concerned the new firearms teams will have to come from existing staff. They say that will deplete the number of officers available for other duties. BBC Home Affairs Correspondent Danny Shaw investigates - and he examines growing unease at the way in which those who discharge their weapons are dealt with. Concern has been highlighted by the suspension and arrest of the officer suspected of shooting dead Jermaine Baker in Wood Green in December. Police representatives tell the programme that while they expect their actions to be investigated, people will not come forward to train as firearms officers if they believe they will be treated like a criminal who fires an illegal weapon. The Independent Police Complaints Commission acknowledges that firearms officers work in challenging circumstances but maintains that police shootings resulting in death or serious injury should be independently investigated. So, can the system for holding them to account be improved? Reporter: Danny Shaw Producer: Ian Muir-Cochrane.

The Serious Fraud Office has begun an investigation into allegations of corruption in the award of multi-million pound oil contracts in the Middle East. A Monaco based company, Unaoil, denies that it helped British and other companies win contracts by corrupting politicians and government officials. The investigation follows a leak of thousands of emails and other documents. Jane Deith has been given access to the leaked papers and reveals what they tell us about the business of oil. Reporter: Jane Deith Producer: Paul Grant.

This week's massive leak of confidential documents from the Panamanian law firm, Mossack Fonseca, has given unprecedented access to the way the rich and powerful have used tax havens to hide their wealth. But within the eleven and a half million documents, there is also evidence of how some of the shell companies set up by the firm, or the individuals that owned them, have been the subject of international sanctions and have been used by rogue states and oppressive regimes including North Korea and Syria. Simon Cox reveals details from the leaked papers and travels to the British Virgin Islands where a small office run by Mossack Fonseca was used to create more than 100,000 companies. One of them was a front for a North Korean Bank that was later sanctioned by the United States for supporting the regime's illicit nuclear and ballistic missile programme. According to the US, the BVI based front company managed millions of dollars in transactions in support of North Korea. Other companies set up by on the island were used by a billionaire businessman who is a cousin of Syrian President Bashar Al Assad and who was sanctioned by the US for using "intimidation and his close ties to the Assad regime at the expense of ordinary Syrians." Mossack Fonseca has said it never knowingly allowed the use of its companies by individuals with any relationship with North Korea or Syria and says it has operated beyond reproach for 40 years and has never been charged with criminal wrong-doing. Reporter: Simon Cox Producer: James Melley