Any person who keeps or possesses liquor upon his or her person or in any place, or on premises conducted or maintained by him or her as principal or agent with the intent to sell it contrary to provisions of this title, shall be guilty of a violation of this title. The possession of liquor by the principal or agent on premises conducted or maintained, under federal authority, as a retail dealer in liquors, shall be prima facie evidence of the intent to sell liquor.
RCW 66.44.170