"Nulle Poena Sine Lege, Nullum Crimen Sine Lege" refers to the fact that an act may only be punished if criminal liability had been established by law before the act was committed. This is known as the principle of legality, which suggests that punishability requires a written act of parliament and cannot be based on custom, that criminal prohibitions must determine the prohibited conduct, that acts cannot be punished retroactively, and that a statutory prohibition cannot be extended by analogy to a conduct not covered by the ordinary meaning of the words used. The correct answer is E.