Traffic Stop Highlights Arizona Law

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A week after Supreme Court arguments over Arizona's illegal-immigration law, the arrest, detention and subsequent release of an undocumented woman following a traffic stop added a real-world example to the courtroom debate about how the statute could play out.

Araceli Mercado Sanchez, who is married to an American soldier and is in the process of legalizing her U.S. residency, was pulled over Tuesday for making an illegal turn, and sent to immigration authorities when she couldn't produce a driver's license or Social Security card requested by a sheriff's deputy. Federal authorities released her late Thursday after she had spent two nights in detention.