Sections of drug paraphernalia statute making it unlawful to deliver, possess with intent to deliver, manufacture with intent to deliver, or advertise drug paraphernalia in circumstances where one knows or "reasonably should know" that items will be used with drugs or that purpose of advertisement is to promote sale of drug paraphernalia are not unconstitutional on ground that they would permit conviction under impermissibly vague negligence standard and would leave innocent sellers in untenable posture of trying to divine intentions of their buyers where, under sections, seller has to already have intended that item be sold for drug use before his knowledge of its use by a buyer came into play. Casbah, Inc. v. Thone, 651 F.2d 551 (8th Cir. 1981).

Where statute includes requirement of intent in definition of drug paraphernalia and enumerates factors which officer has to consider in determining whether object is drug paraphernalia, statute does not alter requirement that searches and seizures be based on probable cause and is thus not violative of Fourth Amendment. Casbah, Inc. v. Thone, 651 F.2d 551 (8th Cir. 1981).