 Except for the addition of new drugs to List I and II of the Opium Law, the Opium Law remained unchanged until 1976.After the rise of a new youth culture which revolved much around the use of drugs like cannabis and LSD, and with hashish being openly used, a change of law was needed by the government, to properly control all drugs, but with a clear definition between drugs with an unacceptable degree of addictiveness or physical harm (known as hard drugs), and drugs with an acceptable degree of addictiveness or physical harm (known as soft drugs).In 1976 these changes officially took effect, and the Opium Law was edited to include the changes in the law.