N.C. Gen. Stat. § 58-71-151
The securities deposited by a professional bondsman with the Commissioner shall be held in trust for the protection and benefit of the holder of bail bonds executed by or on behalf of the undersigned bondsman in this State. Notwithstanding any other provision of law, the Commissioner is authorized to select a bank or trust company as master trustee to hold cash securities to be pledged to the State when deposited with the Commissioner pursuant to statute. Securities may be held by the master trustee in any form that in fact perfects the security interest of the State in the securities. The Commissioner shall by rule establish the manner in which the master trust shall operate. The master trustee may charge the person making the deposit reasonable fees for services rendered in connection with the operation of the trust, and the assets of the account may be used to pay such charges.
A pro rata portion of the securities shall be returned to the bondsman when the Commissioner is satisfied that the deposit of securities is in excess of the amount required to be maintained with the Commissioner by said bondsman; and all the securities shall be returned if the Commissioner is satisfied that the bondsman has satisfied, or satisfactory arrangements have been made to satisfy, the obligations of the bondsman on all the bondsman's bail bonds written in the State.
If a bondsman discontinues writing bonds due to death, permanent incapacitation, or some other circumstance that results in the bondsman returning the license issued under this Article to the Commissioner and the Commissioner is satisfied that no more bonds can be written against the bondsman's security deposit, the Commissioner shall return the portion of the security deposit in excess of that required to secure the bondsman's outstanding bond liability.
The Commissioner may sell or transfer any and all of said securities or utilize the proceeds thereof for the purpose of satisfying the liabilities of the professional bondsman on bail bonds given in this State on which the bondsman is liable.
N.C. Gen. Stat. § 58-71-151