text: The Tulsa County Sheriff's Office falsified the training and firearms records of the millionaire reserve deputy who shot dead an unarmed suspect by mistake, claim sources within the department. They allege that at least three of 73-year-old Robert Bates' supervisors were removed from their posts when they refused to sign off on forged field training hours - and that he was not fit to police the streets. The allegations of corruption published in the Tulsa World come after claims the wealthy CEO 'paid to play cop', which ultimately led to the events of April 2 when he fired his handgun instead of his Taser, killing 44-year-old Eric Harris. Scroll Down for Video . Allegations of corruption: Robert Bates, (right), arrives at the Tulsa County Jail with his attorney, Clark Brewster on Tuesday . The shocking claims come in the same week that Bates turned himself to face charges of second-degree manslaughter for Harris' death. Charged: Robert Bates is free on $25,000 bail and is charged with second-degree manslaughter for the death of Eric Harris on April 2 . The sources who spoke to Tulsa World claim that the reserve deputy was not properly trained to be an armed deputy, despite Sheriff Stanley Glanz saying otherwise. Indeed, Sheriff Glanz and Bates' own legal team have repeatedly produced records which they claim prove he was an 'advanced reserve' and had undergone 480 hours training. However, when asked to produced proof that Bates was certified to use three weapons, including the revolver he fired at Harris, the Sheriff's Office say they have been unable to find the paperwork. The office claims that the deputy who certified Bates has now moved on to work for the Secret Service. 'We can't find the records that she supposedly turned in,' said Glanz according to the Tulsa World. 'So we are going to talk to her to find out if for sure he's been qualified with those weapons.' The Tulsa World have said that they heard 'almost immediately' after the shooting that Bates was allegedly not qualified to be a deputy and that his records had been pushed through the office. The Tulsa World claims to have seen a whole list of the courses that Bates got credit for, but the names of his supervisors have been redacted - a practice they said they had never seen for a public official in Oklahoma. Charged: Bates, 73, accidentally grabbed his pistol and shot Harris (left, in a previous mug shot) dead, according to Tulsa police. Bates is classified as an advanced deputy . Redacted: These are the official records of Robert Bates' training - which the Tulsa World is claiming have been beefed up . One of the reporters at the paper told CNN that they are demanding the office turn over the names. 'You would think the sheriff's office, if in fact there has been no pressure applied, no falsification of records, that they would be forthcoming with these documents,' she told CNN's 'New Day.' 'We've asked for them. They've said they don't believe they're public records.' Undersheriff Tim Albin has vehemently denied that the records that qualify Bates are false. 'The training record speaks for itself. I have absolutely no knowledge of what you are talking about,' Albin said to Tulsa World. 'There aren't any secrets in law enforcement. Zero. Those types of issues would have come up.' Bates, who shot dead Harris during a botched undercover operation after a brief struggle is currently free on $25,000 bail. Shooting: This photo shows a deputy bending down to pick up Bates's dropped gun following the accidental shooting in Tulsa earlier this month. Harris is being held down on the ground, out of shot, by other deputies . Terrified: The fatally-wounded man, who is being held by his neck and back by the deputies (pictured), says: 'Oh my god, he shot me! He shot me! He shot me, man.' He then adds: 'Oh, my god. I'm losing my breath' Video from the incident reveals that as soon as Bates realized he had shot Harris he dropped his gun and immediately said, 'Oh I shot him! I'm sorry.' Bates is classified by the Tulsa County Sheriff's Office as an 'advanced reserve'. This means that he went through 480 hours training of the 'Field Training Officer' or FTO. The Harris family legal team say they believe these traning records are a lie and do not exist. Indeed, already questions have been raised as to the authenticity of Bates' records. The Sheriff's Office have previously said that Bates joined the force in 2008, but when he was asked he said he joined in 2007. In his statement to the Tulsa investigators, Bates said he had previously attended a five-day homicide school in Dallas and also received 'active shooter response training' with the Maricopa County Sheriff's Office in Arizona. He also claims to have been involved in 'at least 100 other' assignments. The corruption allegations come as it emerged that Bates contributed $2,500 to Sheriff Glanz's re-election campaign and that he has donated vehicles and video to the office. However, Glanz has denied that Bates 'paid to play a cop'. 'No matter how you cut it up, Deputy Bates met all the criteria on the Council on Law Enforcement Education and Training to be in the role that he was in,' he said to CNN.
target: Tulsa County Sheriff's Office falsified Robert Bates' training claim sources within the department .
  Bates is officially  an 'advanced reserve' and has 480 hours of training .
  However, the sheriff's department cannot find the woman they claim did his firearms training .
  The names of the supervisors who did his field training have been redacted .