Applicability of Common Law

Applicability of Common Law. In all proceedings, the rules of the common law, as expressed in the restatements of the law approved by the American Law Institute and, to the extent not so expressed as generally understood and applied in the United States, shall be the rules of decision in the courts of the Commonwealth, in the absence of written law or local customary law to the contrary; provided, that no person shall be subject to criminal prosecution except under the written law of the Commonwealth. Source: 1 TTC § 103.