LAS VEGAS (AP) — An appeals court issued a mixed ruling for one member of the MIT Blackjack Team portrayed in the movie “21,” raising questions on how casinos deal with suspected “advantage gamblers” and when their bans are lifted.

The ruling issued Tuesday by the 9th U.S. Circuit Court of Appeals involves professional gambler Laurie Tsao, whom Caesars Entertainment casino personnel identified as an advantage gambler and escorted out five times with warnings that she’d been trespassing.