Richard Perkins tells us that "every law enforcement group in Nevada strongly opposes the ballot measure" to tax and regulate marijuana, as though their positions of authority are simply enough to induce the population. No need to bother with such trivials as facts or realities ["Do NOT rock the ganja!," Your Opinion, May 25]. I believe Perkins when he says that he has "rarely met a heroin, crack or meth addict who didn't start with marijuana." But this is anecdotal nonsense meant to conjure up the mystical "gateway drug" that leads all down the path to coke parties and premarital sex. [continues 235 words]