Custodial interrogation, waiver, and suppression of statements.
North Carolina courts apply both the U.S. Constitution and the North Carolina Constitution to miranda rights claims. When state protections are broader than federal ones, North Carolina judges follow the state rule. When they are equal or narrower, federal precedent controls under the Supremacy Clause.
Federal cases governing miranda rights include controlling U.S. Supreme Court decisions and binding precedent from the federal circuit covering North Carolina. Civil remedies most often proceed under 42 U.S.C. § 1983, with defenses including qualified immunity.
Legal information, not legal advice. For advice on your situation, consult a licensed attorney in North Carolina.