“There is no drug known to man which becomes safer when its production and distribution are handed over to criminals” says Professor Norman Zinberg who led a study into drug addiction at Harvard Medical School.
“Water would become dangerous if it were banned and handed over to a criminal black market.”
From Heroin is Harmless.

[…] Seattle’s other former police chief (and legalization/regulation advocate) Norm Stamper sent this my way—evidence that the nation’s drug czar…