District of Columbia Code Division V. Local Business Affairs § 32-1521. Presumptions.

(1) That the claim comes within the provisions of this chapter;

(2) That sufficient notice of such claim has been given;

(3) That the injury was not occasioned solely by the intoxication of the injured employee; and

(4) That the injury was not occasioned by the willful intention of the injured employee to injure or kill himself or another.