Case Primae Impressionis Law and Legal Definition
Case primae impressionis is a Latin term referring to a "case of first impression". Such a case is one which presents a question of legal interpretation that has not yet been before the court. It is a case which presents a new issue never before decided in a reported case. A first impression case may be a first impression in only a particular state or jurisdiction. In that situation, decisions from other states or the federal courts may be examined as a guideline.