Have you taken note of the wide variety of kinds of cases depending upon the "due process" clauses of the constitution.  

Wiki:  Due Process Clauses
The Fifth and Fourteenth Amendments to the United States Constitution each contain a due process clause. Due process deals with the administration of justice and thus the due process clause acts as a safeguard from arbitrary denial of life, liberty, or property by the government outside the sanction of law. The Supreme Court of the United States interprets the clauses broadly, concluding that these clauses provide three protections: procedural due process; substantive due process, a prohibition against vague laws; and as the vehicle for the incorporation of the Bill of Rights. 

Again, I'm presuming . . . . .