allowability vs due process

allowability

noun
  • The state of being allowable; legitimacy; permissibleness. 

due process

noun
  • The limits of laws and legal proceedings, so as to ensure a person fairness, justice and liberty. 

  • A legal concept where a person is ensured all legal rights when deprived of their liberty for a given reason. 

How often have the words allowability and due process occurred in a corpus of books? (source: Google Ngram Viewer )