Capital Punishment: The Just Punishment for Serious Crimes Justice must be done. Capital punishment is the just punishment for serious crime offenders and must be imposed. First, the basis of a punishment must be just and fair to both the victims and the offenders, and definitely capital punishment serves this purpose by the "a life for a life" principle. Also, it is an effective crime deterent which , by simply incapacitation of the criminal, the chances of committing crimes of that criminal is eliminated. Potential serial killers could not have been serial killers if they we