Mr. Sinclair testified that as the F.B.I. investigation was beginning, Mr. Traficant, acting anxious and erratic, had him burn envelopes that were evidence of cash kickbacks.

Nicola Caruso, an architect, told Federal agents that he sometimes used his children's savings to pay cash kickbacks to Mr. Alexander and kept a list of I.O.U.'s for reimbursement to his children.

Mr. Silvester, who lost the race for treasurer last November, pleaded guilty to accepting cash kickbacks in return for placing $500 million in state pension investments with certain equity funds.

The cash kickbacks, he said, were as high as 20 percent.

But he was offered, and did accept, according to Senate testimony, considerations including a $50,000 cash kickback for helping arrange the tribe's purchase of a $33.4 million ranch.

The difference, the Government said, was often refunded to certain retailers as a cash kickback.

He pleaded guilty to accepting cash kickbacks for placing $500 million in state pension investments with certain equity funds, including one administered by Landmark Partners.

Mr. Taylor pleaded guilty to charges that, between 1985 and 1998, he took more than $300,000 in cash kickbacks from one of the same companies that had made kickbacks to Mr. Rizzuto.

A so-called 'muscler', Flood used his influence to direct federal contracts to people and corporations in exchange for cash kickbacks.

Paul J. Silvester, a former Connecticut State Treasurer, pleaded guilty in Federal court to accepting cash kickbacks in return for placing $500 million in state pension investments with certain equity funds.