Oklahoma sex offender registry laws under attack

The attorneys made the charges on Tuesday during oral arguments before the Oklahoma Supreme Court. Their clients were convicted of various sex crimes in other states and want to stop the state from placing their names on the sex offender registry.

Each case challenges the state's attempt to make its sex offender registration rules retroactive.

Two of the men claim they are exempt from the rules because their crimes pre-date the creation of the registry in 1989. The other was required to register for 10 years when he was sentenced and is challenging the state's attempt to make him register longer following legislative amendments to the registry rules.