How about the law and opiates?
In 1919 the Dutch Opium Act was passed. This determined that heroin was a hard drug from then on: possession, production, import, export and trade are punishable by law. Morphine, codeine and heroin may be used for medical purposes. People who own user amounts are not actively prosecuted. However, the heroin and the syringe attributes can be confiscated. Opiates such as morphine and codeine are mainly used in medicine. Morphine as a heavy painkiller and codeine as a cough suppressant. In that context, they are legal.
Check the theme Drugs and the law for more info.