This is a letter I got from Concord NC city management:

Mayor Padgett asked that I fill in some detail for you. Under NC law, Cities are prohibited from separate actions/ordinances regarding immigration issues. Therefore, through the Concord Police Dept., we have been very supportive of Sheriff Riley's efforts to identify illegal immigrants and refer them to the proper Federal authorities for full enforcement of existing laws. Specifically we do this, just as in the other Counties you mentioned, by direct checks of the immigration status of any person presented to the Cabarrus County jail. We (Sheriff Riley with our support) actually received some federal funding to assure that the program works as intended.

I trust this information is responsive to your concern.

Jim Hipp, Assistant City Manager.