Earlier this week, Mr. Brown resigned as the state's insurance chief after losing a final appeal of his conviction for lying to an FBI agent. He was suspended from the position after his conviction, but did not resign while his appeals were underway..

He was accused of trying to set up a "sweetheart liquidation deal" for the failed Cascade Insurance Company in his state. He was cleared of that crime, but was convicted of perjury.

Mr. Brown, who was the third-consecutive Louisiana insurance commissioner to serve jail time in federal prison, said he has just finished writing a book about his case to prove his innocence. He said he plans to have it published later this summer.

"I have recently completed a book about my entire case, and describe in detail how the justice system failed me," he wrote. "And I have gathered a wealth of information about the federal prison system I hope to turn into a second book later in the year."

Earlier this week, Louisiana's acting insurance commissioner Robert Wooley was named the state insurance commissioner. This fall, Mr. Wooley will also be a candidate for a statewide election for a full four-year term of the insurance commissioner's post.

Mr. Brown, who is 62, had earlier served as a state senator and the secretary of state, and campaigned unsuccessfully for the governorship in 1987. He was first elected Louisiana's insurance commissioner in 1991 and was re-elected to a second term before his conviction in 2000.

"I've never really felt sorry for myself. Bitter at how the justice system failed me? Yes. But I've kept it inside," he wrote on his Web site.