I don't agree with you Dr. North!
You say that a significant part of the problem is the failure of developed nations to open their markets, well let me see now, ask any child over 14 years who has drugs for sale, ask any child over 14 how many people they know that use drugs, go to the local and ask where you can buy drugs, all questions that 51% of the time gets answers.
Try driving at 50 mph in a 30 mph zone, park you car in a no parking zone, drive through a red light, a few of the many things that get 99.9% results from the drive-by police, years ago the British Bobby was the envy of the world, now he is listed below the Nigerian police force, what you are implying Dr. North is that the problem does not center on the law enforcement but on import tariffs, perhaps the problem could be resolved by a drug tax?
The title of my piece, it seems, was right on the button - one which applies with equal measure to your response. When the price of a heroin "wrap" has halved over the last decade - in cash terms not taking account inflation - and now costs less than a packet of cigarettes, there is obviously a supply-side issue.
The thrust of my piece was that concentrating on "end of pipe solutions", without addressing the supply side, was not going to succeed. Nothing you write addresses that point.
As for the idea of a "drugs tax" and import tariffs - how does that affect the illegal trade which - by definition - is outside the law? How does that stop pushers selling cut-price illegal drugs to kids outside the school gate?