The Fifth Amendment of the United States Constitution contains what is commonly known as the "Double Jeopardy Clause." Among its other guarantees, the Double Jeopardy Clause protects against multiple punishments for the same offense. Arguably, the use of a gun during the commission of a felony is punished by the sentence for that crime. Nevertheless, courts have consistently held that California's "10-20-life 'use a gun and you're done'" law does not violate the double jeopardy clause of the 5th Amendment. This is because the California Legislature intended to punish both the underlying felonies and the use of such guns in connection with serious crimes.