The Associated Press

IOWA CITY, Iowa -- The University of Iowa is reviewing its drug testing policies for student-athletes in the wake of star receiver Derrell Johnson-Koulianos's arrest last week.

Iowa athletic director Gary Barta said some "flaws and inconsistencies'' have been found in the policies and some athletes have likely gotten around drug tests in the past.

Johnson-Koulianos was suspended for the Insight Bowl on Dec. 28 after he and a roommate were arrested on drug charges.

Running back Adam Robinson has been suspended for the game for failing to comply with team policies, and oft-injured running back Jewel Hampton plans to transfer.