What does the Latin term "Ipso facto" mean in the field of law?

Ipso facto is a Latin phrase, directly translated as "by the fact itself", which means that a specific phenomenon is a direct consequence, a resultant effect, of the action in question, instead of being brought about by a previous action. It is a term of art used in philosophy, law, and science. (Contrast this with the expressions "by itself" or "per se".)

Source: Wikipedia