D.C. Code § 23-1105
It shall be lawful to charge for executing a bond in a criminal case in the District of Columbia, but it shall be unlawful for a bondsman, either directly or indirectly, to charge, accept, or receive a sum of money, or other thing of value, other than the regular fee for bonding, from a person for whom he has executed bond, for any other service whatever performed in connection with any indictment, information, or charge upon which the person is bailed or held in the District of Columbia. It also shall be unlawful for any bondsman to settle, or attempt to settle, or to procure or attempt to procure the dismissal of any indictment, information, or charge against any person in custody or held upon bond in the District of Columbia, with a court, or with the prosecuting attorney in a court in the District of Columbia.
D.C. Code § 23-1105