In civil cases, a written statement of a witness, other than when required by law, shall not be admissible in any court proceeding, either as an admission or as impeaching evidence, unless the written statement is taken pursuant to the requirements for depositions that the Supreme Court may by rule provide, or unless, before offering the statement in evidence, the party offering the statement identifies the person and capacity of the person taking it and the circumstances under which it was taken. (1959, No. 262, § 39, eff. June 11, 1959; amended 1971, No. 185 (Adj. Sess.), § 48, eff. March 29, 1972.)