The necessity of immunity of parliament and its Members has led to determine and assure particular privilege in the Constitutions or ordinary laws in the great majority of countries. This legal institution is to provide freedom of speech and to maintain the independence of representatives in the exercise of their duties without undue interference…

The Principle of legality of crimes and punishments (nullum crimen, nulla poena sine lege) refers to the fact that an act is not considered a crime and deserves no punishment, unless the Legislator determines and announces the criminal title and its penalty before. The legality principle protects individual security by ensuring basic individual…