Last week, the California Supreme Court decreed that possession of marijuana within the California prison premises remains illegal. This means that prisoners under the penal system in California will be penalized if found in possession of cannabis flowers or products. This ruling overturned a previous lower court ruling. In 1996, California became the first state to approve the use of marijuana for its therapeutic benefits. Legislation for Adult-use marijuana was finally approved in 2016; 20 years after medical marijuana was legalized.