Of all the parts of a law the most effectual is the vindicatory. For it is but lost labor to say, “do this, or avoid that,” unless we also declare, “… - William Blackstone

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Of all the parts of a law the most effectual is the vindicatory. For it is but lost labor to say, “do this, or avoid that,” unless we also declare, “this shall be the consequence of your non-compliance.” We must therefore observe, that the main strength and force of a law consists in the penalty annexed to it. Herein is to be found the principal obligation of human laws. Legislators and their laws are said to compel and oblige; not that by any natural violence they so constrain a man, as to render it impossible for him to act otherwise than as they direct, which is the strict sense of obligation: but because, by declaring and exhibiting a penalty against offenders, they bring it to pass that no man can easily choose to transgress the law; since, by reason of the impending correction, compliance is in a high degree preferable to disobedience.