Illegal Drugs The product is illegal drugs. The people who deal these drugs are criminals. That's what makes the drug business different then any other. *Alcohol is a drug, yet adults are allowed to use alcohol products. *Nicotine is a drug, yet adults are allowed to use many different forms of tobacco products, all which have tobacco in them. *The drug Caffeine can be found in many everyday items, like soda candy bars. Think of how many cops we would need if caffeine products were illegal. Why are drugs like cocaine,marijuana and heroin illegal? Cocaine, marijuana and heroin are illegal beca