Here are the only restrictions that I know of... - Beer, wine, liquor, cigarettes or tobacco - Any non-food items, such as: - pet foods; - soaps, paper products; and - household supplies. - Vitamins and medicines. - Food that will be eaten in the store. - Hot foods There are loopholes with every system, and people that will always be there to suck it up. So even if you did weed out the drug users, you still have the people that abuse the system.