1 - Consider the different effects and risks associated with the various forms of cocaine (chewing the coca leaf, snorting cocaine, injecting cocaine, smoking crack). Should different laws and penalties be applied to the different forms?

2 - Nicotine's dependence liability is high, and how its chronic use affects health is widely known. Why, then, do you think that use of this drug remains legal in much of the world?

3 - Research provides us with good evidence that individuals may build up a physical dependence on caffeine. Is this a reason to impose any restrictions, warning labels, or other controls on caffeine use? Why or why not?