london police just as corrupt as american police Original Article Aug 24, 2:44 PM EDT Group Set to Probe London Police Shooting By MARA D. BELLABY Associated Press Writer LONDON (AP) -- Rejecting suggestions that London police had erased key evidence, a police watchdog group said it has all the evidence it needs to investigate the police shooting of a Brazilian man mistaken for a terrorist, the group said Wednesday. The chairman of the Independent Police Complaints Commission Nick Hardwick said his investigators had closed circuit footage from the subway station where Jean Charles de Menezes was shot seven times in the head. He called the footage "very helpful." "I'm not aware of any information that we are missing," Hardwick told reporters after meeting with a senior Brazilian delegation that came to London to find answers to the Menezes shooting. "I believe that I have all the information that I need ... but I'm not going to believe anything until our own investigation has established it." Menezes was killed on July 22, the day after failed bomb attacks hit the London transit system. Those attacks came exactly two weeks after similar bombings killed 52 commuters and four suspected bombers. Advertisement A member of the Brazilian delegation said they believed someone should be held accountable. "A Brazilian citizen was killed and we believe that someone should be considered guilty," said Manoel Gomes Pereira of Brazil's Foreign Ministry. "This case creates a situation in which the government and the family in Brazil must deserve some answers." New revelations have suggested that police failed to properly identify Menezes, some of the officers tailing him did not believe he posed an immediate threat, and armed police fired at him even after he had been restrained. Leaked documents also contradicted initial witness statements that Menezes had been dressed in a bulky coat despite the warm weather and had run from police. And this week, a dispute emerged over footage from the closed circuit television cameras in the station where Menezes was killed. British media reported that police complained to subway employees that the tapes were useless, something the staff allegedly disputed. The media reports, citing subway sources, suggested police might have tampered with the tapes to erase the video, but provided no evidence for those allegations. Hardwick appealed to Britons for patience to let his team investigate why Menezes was mistaken for a suicide bomber. "I still don't know the truth of what happened," Hardwick said. "When I know what happened, I'll tell the public." On Tuesday, the IPCC said it would have a report ready by the end of the year, but its publication might be delayed if any criminal or disciplinary proceedings against the officers involved were underway. The Brazilian officials, who spent two hours talking to the police watchdog group, left without commenting. However, they were expected to address the media later Wednesday. The two Brazilian officials, Deputy Attorney General Wagner Goncalves and Marcio Pereira Pinto Garcia, a high-ranking Brazilian Justice Ministry official, met earlier Wednesday with British prosecutors. The Crown Prosecution Service is not involved in the case at this stage but ultimately may have to decide whether to bring criminal charges against the police officers. Menezes' family have called for those responsible to face prosecution. Meanwhile, Metropolitan Police Commissioner Sir Ian Blair, who has faced calls for his resignation, won the backing Wednesday of London Mayor Ken Livingstone . In an interview with BBC radio, Livingstone accused unidentified "disgruntled" police officers of attempting to undermine Blair, whom Livingstone praised as "a radical and reforming commissioner" and "the best news that London policing has got." Livingstone called Menezes' killing a "terrible accident and tragedy," but said that Blair's detractors within the police department were using the incident to undermine the chief. "Here is a radical and reforming commissioner making major changes to the police who has many enemies in there, who really don't want to see those changes," Livingstone said. Meanwhile, The Guardian newspaper, citing unidentified police and counterterrorism sources, reported Wednesday that the four suspected July 7 suicide bombers detonated themselves by pressing buttons. If true, that rules out any suggestion that the bombs were triggered from afar by mobile phone and the bombers were unaware of their task, the newspaper said. Metropolitan Police declined to comment, saying it will not discuss any part of the investigation.