2017. In May 2017, listed UK company Petrofac suspended a top executive in connection to the Unaoil investigation. On March 25, 2019, CEO Cyrus Ahsani and COO Saman Ahsani pled guilty for their roles in a scheme to corruptly facilitate millions of dollars in bribe payments to officials in multiple countries. Corruption charges laid by Serious Fraud Office On 17 November 2017, the Serious Fraud Office charged two former Unaoil Iraq managers with conspiring to pay bribes to win Dutch company SBM Offshore contracts in Iraq. The Iraq officials allegedly bribed were not named. The SFO also issued extradition proceedings against Unaoil Chief Operations Officer Saman Ahsani. On 30 July 2020 Stephen Whiteley, the company's former territory manager for Iraq was sentenced to 3 years in prison. Ziad Akle, another former Iraq territory manager, received 5 years in prison. In December 2021 the UK Court of Appeal overturned the bribery conviction of a Ziad Akle after finding that the U.K.'s Serious Fraud Office committed a "serious failure" in refusing to turn over evidence that would have helped him at trial. In December 2021, the Court of Appeal quashed the conviction of Unaoil’s former territory manager for Iraq Ziad Akle after the SFO disclosed evidence of ‘wholly inappropriate’ contacts with David Tinsley, a former US Drug Enforcement Administration agent who acted on behalf of the Ahsanis. In March 2022 a second man convicted in Britain over the Unaoil case had his conviction overturned on the same basis as Ziad Akle. The ruling piles more pressure on SFO director Lisa Osofsky one month after UK Attorney General Suella Braverman appointed former Director of Public Prosecutions and High Court judge David Calvert-Smith to lead a "forensic and robust" review into SFO failings in the case. In June 2022 it was reported that Stephen Whiteley, another former Unaoil Manager also had launched an appeal against his conviction, based on the two quashed convictions in the same matter. This was commented as a further blow to the SFO’s investigation. On 21 July 2022 the Review led by Sir David Calvert Smith was published. The review was criticizing the conduct of SFO's head in leading the Unaoil Investigation: "It is clear that [Lisa] Osofsky was faced with a difficult situation very early in her tenure and made a number of mistakes and misjudgements which, with the benefit of hindsight, she now accepts." Calvert-Smith said further that