origin. even so, some in law enforcement say confusion will persist. >> it puts my officers in a very difficult position. if they enforce the law or if they don't enforce the law. so they're being put in a place where if they enforce state law, they're going to be sued because they're violating federal law. if they abide by federal statute, they're going to be sued because they're not enforcing the state law. >> reporter: friday brewer signed the revised version of the law. >> casey wian is live for us in phoenix. casey, this was supposed to make the critics feel better, these changes, but how are they taking to the changes now? >> reporter: t.j., they still don't like this law. some of the problems they have with it is that it will allow police who are investigating municipal code violations to investigate someone's immigration status, so potentially someone who has got a barking dog or someone who has got grass that's overgrown and someone complainses about that, police could come and respond to

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