Judge blocks key parts of Arizona immigration law

PHOENIX Wed Jul 28, 2010 1:54pm EDT

Demonstrators hold a banner as they protest against Arizona's controversial Senate Bill 1070 immigration law outside the U.S. District Court in Phoenix July 22, 2010. REUTERS/Joshua Lott

Demonstrators hold a banner as they protest against Arizona's controversial Senate Bill 1070 immigration law outside the U.S. District Court in Phoenix July 22, 2010.

Credit: Reuters/Joshua Lott

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PHOENIX (Reuters) - A judge on Wednesday blocked key parts of Arizona's tough new immigration law, granting the Obama administration's request for an injunction on grounds that immigration matters are the federal government's responsibility.

U.S. District Judge Susan Bolton agreed to an injunction on provisions including one that required a police officer to determine the immigration status of a person detained or arrested if the officer believes the person is not in the country legally.

The Republican-controlled Arizona Legislature passed the law in April to try to stem the flow of illegal immigrants over the state's border with Mexico and cut down on drug trafficking and crime -- setting it on a collision course with the federal government.

(Reporting by Jeremy Pelofsky in Washington and Tim Gaynor in Phoenix, Editing by Sandra Maler)

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