The Supreme Court invalidated most provisions of Arizona’s draconian anti-immigration law, known as S.B. 1070, including Section 6 which granted state police greater authority than federal officers to make warrantless arrests of anyone they suspected of being undocumented. The decision upholds, however, the clearly discriminatory Section 2b – the “show me your papers” provision – which allows police to demand proof of immigration status from individuals they stop, detain or arrest. The Court did not rule on challenges to that provision which question its discriminatory effects. It will likely hear additional challenges on those grounds at a later time.