Rule of Completeness Law and Legal Definition

Rule of completeness is a principle of evidence law that when a party introduces part of a writing or an utterance at trial, the adverse party may require the introduction of any other part to establish the full context. The rule is subject to two limitations: One, the utterance should be relevant and two, the remainder of the utterance must explain the first part. Rule of completeness is partially codified in Rule 106 of the Federal Rules of Evidence. USCS Fed Rules Evid R 106 provides "When a writing or recorded statement or part thereof is introduced by a party, an adverse party may require the introduction at that time of any other part or any other writing or recorded statement which ought in fairness to be considered contemporaneously with it."