Stronger the Drug Laws, The Stronger the Drugs
According to a study by the Office of National Drug Control Policy, cocaine prices (adjusted for inflation) fell by more than 80% between 1981 and 2003, while the average purity almost doubled from 40% to 70% during that period (see graph above, click to enlarge). The data in the graph are for amounts of powdered cocaine less than 2 grams, the report also has price and purity for larger amounts, as well as price/purity data for heroin, crack cocaine, meth and marijuana, for those data go here.
Bottom Line: We spend about $50 billion per year on the War on Drugs, and arrest about 1.7 million Americans every year for drug violations, and yet drugs get cheaper and stronger over time??
Check the Drug War Clock here, to see the amount spent so far this year at the federal and state level, and the number of arrests.
See Slate Magazine's article "How Much for All That Heroin? The Art and Science of the DEA's Drug Valuations," which is where I found the link to the drug study and data.