Although I appreciate your request for suggestions in this matter, I don't know that anyone can meet your criteria of both credible and legal. Pretty much any non voilent suggestion will have a level of credibility. I perfer the Nancy Reagan approach to address the drug problem. Just say no. However credible and effective that approach may be in starving the beast, every one of us knows that so long as the government is the sole arbiter of what is legal and what is not, absolutely no action that the people could initiate would ever be considered legal. We are always under the threat of the government gun. Nonetheless, here goes. Citizens, en mass, just say no!