The longtime pot advocate briefly spent time behind bars in the late 1960s when he was caught in possession of the drug at the Mexico-US border, but he said that he is often tempted to risk another stint in jail, reported Contactmusic.
"If you appreciate California weed - as I have for many years - you'll realise that we're somewhat close to the money when we say that California has surpassed Thailand, Jamaica, South Sudan and certainly Mexico as the king and queen of quality weed," Stone said.
"I'm thinking myself of getting into the business, although I suspect there'd be a lot of stress with the Feds (federal agents) changing the rules all the time," he added.