Drugs
Most states have laws that give different treatment to possession of different categories of drugs (i.e. prescription drugs, marijuana, crystal methamphetamine), and also make a distinction in the offense charged as to whether a small amount of the drug was found with the defendant (personal use) or a larger amount (intent to sell or distribute, trafficking). A conviction on a drug charge of any magnitude, even a small amount of marijuana, can seriously affect your present and future employment chances, your education, your reputation and your freedom.