What is the principle of double jeopardy and its protection in criminal law?

• A. A person can be tried again after acquittal.
• B. A person cannot be tried again after acquittal or conviction.
• C. Double jeopardy allows harsher punishment for the same act.
• D. A person cannot be tried twice for the same offense after acquittal or conviction.

Answer: (D)

Double jeopardy is the protection that a person cannot be prosecuted again for the same offense once a final decision has been made. The best choice reflects this by saying you cannot be tried twice for the same offense after acquittal or conviction. This principle helps ensure finality and fairness: once the court has reached a verdict, the case should end and the person should not face endless harassment or punishment for the same conduct. It also keeps the legal system from changing its mind and retrying someone after a failed prosecution. Note that this protection doesn’t bar all future actions—if the conduct gives rise to a different offense, that separate charge can still proceed, and a case that ends in a hung jury can be retried because a final verdict hasn’t been reached yet.