Simpson's lawyers renewed their attack on DNA evidence, asking for an admissibility hearing on all test results submitted since they abandoned their pretrial challenge of such evidence.

CNN: O.J. Simpson trial: Houseguest Kato Kaelin testifies

The defense said its decision in January to waive a hearing on the admissibility of DNA evidence applied only to results known at the time.

CNN: O.J. Simpson trial: Houseguest Kato Kaelin testifies