D.C. Code § 28-4510: Judgment in favor of the District of Columbia as prima facie evidence.

A final judgment or decree determining that a person has violated this chapter in an action brought by the District of Columbia under section 28-4506 , other than a consent judgment or decree entered before any testimony at trial has been taken or entered pursuant to a plea of nolo contendere, shall be prima facie evidence against such person in any other action against such person under section 28-4508 or 28-4509 as to all matters with respect to which the judgment or decree would be an estoppel between the parties to that judgment or decree.