Rule 615. Exclusion of witnesses.
At the request of a party the court may order witnesses excluded sothat they cannot hear the testimony of other witnesses, and it may make theorder of its own motion. This rule does not authorize exclusion of (1) a partywho is a natural person, or (2) an officer or employee of a party that is not anatural person designated as its representative by its attorney, or (3) aperson whose presence is shown by a party to be essential to the presentationof his cause, or (4) a person whose presence is determined by the court to bein the interest of justice. (1983, c. 701, s. 1.)