<em>Procedural due process</em> means that government officials ( police, judges etc.) have to follow fair procedures before depriving a person of their property, liberty or even their life.
The police is not allowed to conduct a search of someone's house without a <em>search warrant</em>. The warrant must be issued previously by a judge who is shown evidence ( in most cases suspicion is enough ) that a crime took place in that particular house or that items connected to that crime could be found there.
Every person <em>accused of a crime</em> has the constitutional right to be informed why they were accused of that crime in the first place. This right is stated in the 6th Amendment and is the fundamental right of the accused.
