undertook a review of investigation in 1999. The family were not told of the investigation or its outcome. On 1 April 2009, at the 2009 G20 London summit protests, a member of the Territorial Support Group, the SPG's successor organisation, struck Ian Tomlinson, a newspaper vendor, who collapsed and died. The parallels in the deaths of the two men proved to be the catalyst in the release of the Cass report to the public. Stephenson also officially apologised to Peach's family. That June the Metropolitan Police commissioner, Sir Paul Stephenson announced that Cass's report and supporting documentation would be released. SPG Unit 1-1 After Stephenson's announcement that the Metropolitan police would publish the Cass report, Murray stated that he believed he was the officer referred to in the report as "Officer E", but said that "Under no circumstances was I involved in the death of Blair Peach. I was not involved in his death. I'm as certain as I can be." Murray considered Cass's report to be "pure fabrication to justify his failure to identify the perpetrator of this act". Angered at the handling of the initial investigation, Murray left the police and joined his brother's jewellery business in Scotland before becoming a lecturer in corporate responsibility at the University of Sheffield. Two days after the Nazi memorabilia and unauthorised weapons were found in his possession, Bint was transferred out of the SPG. Richardson and Freestone were transferred out soon afterwards; Scottow and White voluntarily transferred. All the officers left the police force shortly after the investigation ended. Undercover Policing Inquiry In 2021 evidence was provided to the Undercover Policing Inquiry that the Metropolitan Police monitored Stubbs with undercover officers for about twenty years. This included taking photographs at Peach's funeral and creating an attendee list report, and monitoring the 20th anniversary event planning in 1998. Impact Following the actions of the police at Southall, the Asian community in the area felt that relations between them and the police had broken down; many saw the police as aggressors. One member of the community said "Our feeling now towards the police is one of shock. In India the police are very brutal, but none of us believed until Monday night that the police here could behave equally brutally." The journalists Mark Hughes and Cahal Milmo consider that the action of the SPG "became a symbol of police corruption". Writing after the