In People v. Monson, 255 Cal. App. 2d 689, 63 Cal. Rptr. 409, 411 (Ct. App. 1967), the accused moved in with her boyfriend and lived there for three or four months. Upon searching the residence, police found a small pan containing heroin in a hallway closet. Id.
Although the accused admitted using drugs with her boyfriend, she denied knowledge of the heroin claiming to be unaware of "where it came from." Id.
The Court found that her "disclaimer of knowledge where the narcotic came from did not have to be accepted," and concluded that the evidence was sufficient to support her conviction. Monson, 63 Cal. Rptr. at 412.