Va. Code § 20-81: Presumptions as to desertion and abandonment

Proof of desertion or of neglect of spouse, child or children by any person shall be prima facie evidence that such desertion or neglect is willful; and proof that a person has left his or her spouse, or his or her child or children in destitute or necessitous circumstances, or has contributed nothing to their support for a period of thirty days prior or subsequent either or both to his or her departure, shall constitute prima facie evidence of an intention to abandon such family.Code 1919, § 1941; 1918, p. 761; 1922, p. 846; 1974, c. 464.