A sponsor of proposed immigration laws in North Carolina says a study shows some of the more stringent ones may be costly or redundant.
    
The state Department of Public Safety released the study at the request of legislators, who ordered the review rather than voting on the proposals in the last session.
    
The bill includes proposals such one similar to Arizona's "show-me-your-papers" law and another that would require people in the state illegally to reimburse the state for their incarceration.
    
The study says the "show-me-your-papers" proposal is redundant because officers already can check on a person's immigration status when stopping someone for another reason. And the study says the incarceration proposal could cost the state money because North Carolina could lose federal reimbursement for those costs.

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