Void for Vagueness
Definition - What does Void for Vagueness mean?
"Void for vagueness" is a term that describes the fact that laws in America will be void unless they are clear enough for a person of average intelligence to completely understand.
The U.S. Constitution states in the due process clause that laws must be easy to understand in order to be legitimate.
Justipedia explains Void for Vagueness
There are several things that could potentially make a law void for vagueness. One is if the law does not specify which behavior or action is lawful or unlawful. Another is if citizens are not given sufficient notice about laws regulating their behavior. For example, the government cannot create a law requiring that all coffee vendors must pay a 20% sales tax to the government and then fine or arrest coffee vendors who don't pay it before they have been given notice of the tax. Essentially, laws must be clear and instituted properly in order to not be void for vagueness.
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