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BOISE-- A U.S. aerial freestyle skier from Idaho haspleaded not guilty to speeding and drunken driving charges afterhis arrest Friday.

Through his attorney, Jeret Speedy Peterson filed paperworkindicating he'll challenge his arrest after police say he racedthrough Hailey, Idaho at three times the speed limit.

Peterson failed field sobriety tests but refused a blood-alcoholtest. He's since been released from Blaine County Jail.

Doug Nelson, his attorney, didn't return a phone call Tuesday.

Peterson, who won a silver medal at the 2010 Vancouver Olympics,was dismissed from the 2006 Turin Olympics after a drunken brawl.

In 2009, he was cited in Boise for public urination.

And in 2005, Peterson was charged with breaking into a home andstealing weapons. He pleaded guilty after felony charges werereduced.

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