Revocation is the act of recalling or annulling, the reversal of an act, the recalling of a grant, or the making void of some deed previously existing. It exists in both common law and civil law. Canon law This term is of wide application in canon law. Grants, laws, contracts, sentences, jurisdiction, appointments are at times revoked by the grantor, his successor or superior according to the prescriptions of law. Revocation without just cause is illicit, though often valid. Laws and customs… (More on Revocation)