WASHINGTON AP – The Supreme Court expressed skepticism Monday about giving a convict the broad constitutional right to test DNA evidence, which for 232 people has meant exoneration years after they were found guilty.

At issue is the case of William Osborne, who was convicted in a brutal attack on a prostitute in Alaska 16 years ago. He won a federal appeals court ruling granting him access to a blue condom that was used during the attack. Testing its contents would firmly establish his innocence or guilt, says Osborne, who has admitted his guilt in a bid for parole.