“A Justice Department survey reports that 70 percent of those arrested for serious crimes are drug uses, which may mean that "drugs cause crime." A more sophisticated analysis suggests that the high cost of drugs, a result of their prohibition, forces drug users to turn crime to support an unnecessarily expensive habit.
Drug prohibition, by giving young people the thrill of breaking the law and giving pushers a strong incentive to find new customers, may actually increase the number of drug users. Moreover, out policy of pressuring friendly governments to wipe out drug cultivation has undermined many of those regimes and provoked resentment against us among their citizens and government officials.
We can either escalate the war on drugs, which would have dire implications for civil liberties and the right to privacy, or find a way to gracefully withdraw. Withdrawal should not be viewed as an endorsement of drug use; it would simply be an acknowledgment that the cost of this war- billions of dollars, runaway crime rates and restrictions on our personal freedom — is too high.”

Source: Why Our Drug Laws Have Failed and What We Can Do About It: A Judicial Indictment of the War on Drugs, 2011, pp. 126-127

The War On Drugs Is Lost (1995)

“Transcript of Judge James P. Gray's Visit to the Drug Policy Forum,” The New York Times, (June 14, 2001)

America's Drug Forum interview (1991)
Context: The proper role of government is exactly what John Stuart Mill said in the middle of the 19th century in On Liberty. The proper role of government is to prevent other people from harming an individual. Government, he said, never has any right to interfere with an individual for that individual's own good.
The case for is exactly as strong and as weak as the case for prohibiting people from overeating. We all know that overeating causes more deaths than drugs do. If it's in principle OK for the government to say you must not consume drugs because they'll do you harm, why isn't it all right to say you must not eat too much because you'll do harm? Why isn't it all right to say you must not try to go in for skydiving because you're likely to die? Why isn't it all right to say, "Oh, skiing, that's no good, that's a very dangerous sport, you'll hurt yourself"? Where do you draw the line?

I Ain't Got Time To Bleed (1999)
Context: We shouldn't be wasting so much time and so many resources on prosecuting consensual crimes such as prostitution and drug possession. I hold drug possession and drug dealing as two totally different concepts. The drug dealers who resort to deadly street violence should be dealt with severely as the criminals they are.
But we have to become willing to admit as a nation that our war against drugs has failed. And we have to start looking for other solutions. I want the drug business stopped. But I know it never will stop as long as people want the drugs. It's supply and demand. You can even get drugs in prison.

Source: Why Our Drug Laws Have Failed and What We Can Do About It: A Judicial Indictment of the War on Drugs, 2011, p. 53

Interview with Jasper Gerard, "Taking the fight to the dreary people," The Sunday Times (London) (2 October 2005)
2000s

"Some Random Thoughts About the War On Drugs".