Controlled Substance Analogue Enforcement of 1986 is a law that was created to help stop drug dealers from using certain chemicals to make drugs that act like illegal drugs that the law has already made it illegal to make, use, or sell. It works like this: when the law makes a drug illegal, it usually names the drug, like cocaine or heroin, but it doesn't always name the chemicals or ingredients in it. Drug dealers can then find other chemicals or ingredients that can act like these illegal drugs. The law of 1986 helps to stop this by saying that if a drug looks like, acts like, or is made from something illegal, it will also be illegal. This law helps catch drug dealers who try to get around the law by using new chemicals or ingredients.