PHOENIX -- Maricopa County Attorney Andrew Thomas said the U.S. Supreme Court ruling Monday on ID theft and illegal immigration will not affect the state's prosecution of these cases.

The Supreme Court ruled that the federal government over-stepped its bounds by using ID theft laws to prosecute undocumented workers who use fictitious identification to get jobs.

Arizona's laws are different from federal laws because the state's make it illegal to steal an ID whether it was real or fictitious, Thomas said.

Thomas said his office will continue to use the ID theft laws to help prosecute illegal immigration.