How long does marijuana remain in the body?

The use of soft drugs in general is not prohibited, on the general principle of self-determination in matters of the body. Specifically, that it is not illegal to hurt yourself; however, you remain liable for the consequences of your actions. Because of this, users are not prosecuted for possession of small quantities of soft drugs ("for personal use"). Driving under the influence of drugs is nevertheless prohibited, as is being under the influence in public (of either alcohol or other drugs), mainly from a public nuisance perspective.