Johannesburg - Former head of the police's detective services unit Lieutenant General Vinesh Moonoo has denied that he was ever in a corrupt relationship with Czech criminal Radovan Krejcír.Civil rights organisation AfriForum, along with forensic investigator Paul O'Sullivan, revealed a letter sent by Krejcír's lawyer, Eric Bryer, to the NPA, seeking Krejcír 's voluntary extradition to the Czech Republic.AfriForum released the letter as part of the launch of the organisation's specialised anti-corruption unit.According to Bryer's letter, Krejcír had "collusive, corrupt dealings" with former high-profile members of the police, and a magistrate.In the letter, he named Moonoo, two crime intelligence officers, and a magistrate."My instructions are that he is prepared to undergo extensive debriefing and to testify in respect thereof from his home country of Czech Republic where adequate security will be given," the letter says."My instructions are that my client will plead guilty to all charges if he is given a concurrent ten-year jail sentence in respect of each offence."He said Krejcír was seeking voluntary extradition in return, and was prepared to turn State witness in all cases.'We made life difficult for him'Moonoo told News24 that, before his retirement, he had been responsible for setting up the team who had arrested Krejcír, but that he had had no personal dealings with him."I was responsible for his arrest," said Moonoo. "I deny having a corrupt relationship with him."He said Krejcír had tried everything to get out of South Africa since his arrest, including trying to escape from prison, and this was a last resort for him to get out the country."We made life too difficult for him," Moonoo said.Krejcír is currently on trial for the murder of Lebanese national Sam Issa.Earlier this year, he was convicted on charges of attempted murder and kidnapping in another case and sentenced to 35 years in jail. He also faces charges of attempting to escape from prison and conspiracy to murder O'Sullivan and crime intelligence officer Colonel Nkosana "Killer" Ximba.He has been convicted of tax fraud and conspiracy to murder in absentia in the Czech Republic. The country has been attempting to have Krejcír extradited there since his arrival in South Africa on a false passport in 2007.