Arizona and the federal government await a decision from a Phoenix district judge on whether enforcement of SB 1070 will move forward on July 29th, or whether all or some parts of the law will be enjoined. Meanwhile, local law enforcement is struggling to interpret SB 1070 and provide training to officers, which could be further complicated if the judge allows only some parts of the law to go forward.

In this new report released today by the Immigration Policy Center, journalist Jeffrey Kaye reveals that "instead of 'statewide and uniform practices' as directed by the governor, Arizona police agencies have developed a patchwork of guidelines based on varying interpretations of the law."

Kaye's reporting includes interviews with police officials, who cite concerns with implementing the new law, and a review of training materials that suggest the implementation of SB 1070 will differ from one jurisdiction to another, and even within police agencies, and "will be burdensome, costly, and distort priorities."