(1) Collateral security or other indemnity accepted by a bail bond agent, except a promissory note or an indemnity agreement, shall be returned upon final termination of liability on the bond. Such collateral security or other indemnity required by the bail bond agent must be reasonable in relation to the amount of the bond. Collateral security may not be used by the bail bond agent for personal benefit or gain and must be returned in the same condition as received. A bail bond agent may ac...