The search warrant was related to entrance fees for the annual Texas Relays track meet in Austin.
A February 8th search of Wilson's office found dozens of checks, many from high schools that participated in the meet in 2006 and 2007.
A week earlier, university officials searched a room where items are kept for the meet.
Officials found checks, cashier's checks, money orders and receipts -- dating back to 2003.
UT athletics spokesman Nick Voinis today declined comment on the investigation, but says Wilson no longer works in the office.
Wilson didn't immediately return a call for comment.
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