Former Metropolitan Police Commissioner Sir Ian Blair has been cleared of misconduct over the award of police contracts worth £3 million to a friend.
An independent investigation involving officers from two other forces found "absolutely no evidence of dishonesty", said his spokeswoman.
The inquiry examined work given to Impact Plus, later Hitachi Consulting, a company owned by Andy Miller, a close friend and skiing partner of Sir Ian.
Sir Ian said he was forced to publicise the results of the inquiry himself after a meeting of the Metropolitan Police Authority (MPA) voted to keep it secret.
In a statement issued through his solicitors, the retired senior officer said he too had not seen the full report into his conduct.
He released details of three of Sir Ronnie Flanagan's conclusions passed to him in a letter which exonerated him of dishonesty and stated there was no basis for a criminal prosecution.
But questions remained over whether Sir Ian would have faced disciplinary proceedings if he was still in his post at the head of Scotland Yard. Sir Ian said members of the MPA did not accept Sir Ronnie's third conclusion that there was "no basis" for police misconduct proceedings against him or anyone else. He added that members of the police watchdog body gave no reason for this decision and called on them to publish the full report.
Sir Ian said: "I can find no reason why the police authority, whom I served as commissioner and deputy commissioner for nine years, should refuse to publish a report which exonerates me entirely from allegations of wrongdoing.
"Sir Ronnie's interim report, and now his final report, have been based on a thorough and lengthy inquiry.
"It is a great sadness that all of the hard work involved in the extraordinary transformation of communications which the C3i Programme brought to the Met should be overshadowed by this inquiry and now this refusal to publish its findings."