Nicky Boje has been questioned by Indian police about a match-fixing case dating back seven years.
The former South Africa all-rounder, who has always denied any involvement, is playing for the rebel India Cricket League after retiring in 2006.
"We've interrogated him in all aspects of the case," said Satyendra Garg, additional police commissioner for crime, who led the questioning.
"Questions were asked on all aspects of the case and Boje answered them."
Boje, 34, was named in a Delhi police probe into cricket corruption during South Africa's Test tour in 2000.
It followed an admission from the late South Africa captain Hansie Cronje that he had taken money to influence matches.
Indian police charged Cronje, Boje, Herschelle Gibbs and Piet Strydom with "cheating, fraud and criminal conspiracy relating to match fixing and betting" on the basis of taped telephone conversations between Cronje and a bookmaker.
""Nicky Boje was innocent. I know that for a fact. I can read people.""
But Boje escaped punishment because there was no evidence linking him to match-fixing.
Garg added: "We'll do further investigations to finalise the case.
"The case is still open and there are yet more investigations to be done."
Cronje was banned for life for his role in match-fixing, while Gibbs, who accepted an offer of money to under-perform, served a six-month ban imposed by his own board and was finally interviewed by police in India in September 2006.
This is the first time Boje has been questioned over the affair after he missed two subsequent tours to India but he was defended by former South Africa cricket chief Dr Ali Bacher last year.
"Nicky Boje was innocent. I know that for a fact. I can read people," said Bacher.
Boje retired from international cricket last year after 43 Test matches and 115 one-day internationals.
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