Recently, the Supreme Court reaffirmed a long-standing legal theory- the Constitution does not protect you from being prosecuted twice for the same incident; once in state court and once in federal court. For example, guns are regulated under both state and federal law. In certain areas, state and federal law overlap-they prohibit the same conduct. But how do twin prosecutions actually happen? What are the factors that could lead someone to be prosecuted a second time over the same conduct? Terance Gamble's experience as a defendant sheds new light on the issue.