So, first of all, smokin’s bad. You shouldn’t smoke. And uh, alcohol is bad, you shouldn’t drink alcohol. And as for drugs, well, drugs are bad, you shouldn’t do drugs. M’kay, that about wraps up my introduction, now are there any questions? Yes, Stan?
The many problems of drugs — and of the ‘war on drugs’ — are well known. This post concerns a less discussed drug problem: the criminal law of drugs. No-one has adequately solved the legal puzzle of how to prohibit the market in bags of powder — in particular, how to reliably and fairly connect identifiable people to those bags of powder,
The criminal law of drugs is bad. Even the simplest drug situations routinely raise vast problems for police, lawyers and judges. The common scenario of someone flying into an airport with a suitcase lined with drugs prompted Australia’s most important — and its most difficult — High Court case on the criminal law. A person’s criminal responsibility (or lack of responsibility) for what is in her luggage continues to be fine-tuned three decades later, including in two High Court cases last year.
Last month, the High Court’s judges split four to three on another, recurrent drug law puzzle: proving who is responsible for drugs sent unaccompanied in the mail. The complex appeal in Kalbasi v Western Australia  HCA 7 is an object lesson, not only in how very difficult it is for police to net the biggest players, but also how Australian courts can punish someone for being a Mr Big without ever affording him a fair trial before a jury.