A former Utah tax protester, who claimed federal tax laws were unconstitutional, was ordered Tuesday to pay the Internal Revenue Service more than $11,000 in back taxes.

Randolph J. Arnold, 40, Midvale, "did get caught up with the tax protest movement, which he sympathized with," defense attorney David Grindstaff told Utah federal Judge David Winder."But, during the past few years, he's come back on board," Grindstaff said.

Arnold pleaded guilty Aug. 1 to one of three counts of attempting to evade paying federal income taxes. In exchange for his guilty plea, federal prosecutors dismissed the other two charges.

"I believed I was within my rights," said Arnold, an unemployed welder who did not file federal tax returns for the years 1983 through 1985. "I realize I was in error. I really don't have any excuse for this action."

Winder placed the defendant on probation for three years and ordered Arnold "to pay this deficiency to the extent that you reasonably can," and to continue filing annual federal tax returns.

Prosecutors said Arnold owed $11,012 in back taxes for the three-year period.

the tax debt.