"You have to understand going in that drugs are an evolutionary process ... The day after we pass a law, they are going to look for ways to circumvent that."<p>The law of unintended consequences. I was recently reading about cocaine production in South America. The DEA pressured Bolivia into putting restricting the so-called "precursor chemicals" needed to convert cocaine paste into cocaine powder. As a result, Bolivia stopped manufacturing and exporting powder all by itself, and started exporting its paste to the many factories which sprung up in neighbouring Uruguay and Argentina. This turned out to be a much better arrangement - not only did these industrial countries have access to high grade chemicals and lab equipment, they also had far better shipping routes. As a "bonus", a thriving secondary market in the production residues (an impure but highly addictive form of crack, locally known as "Paco") sprang up around the labs, enslaving local populations as badly as any meth town. Creativity loves constraints.