Rule 615.
Excluding Witnesses
At a party’s request, the court must order witnesses excluded so that they cannot hear other witnesses’ testimony. Or the court may do so on its own. But this rule does not authorize excluding:
(a) a party who is a natural person;
(b) an officer or employee of a party that is not a natural person, after being designated as the party’s representative by its attorney;
(c) a person whose presence a party shows to be essential to presenting the party’s claim or defense; or
(d) a person authorized by statute to be present.
(Pub. L. 93–595, § 1, Jan. 2, 1975, 88 Stat. 1937; Mar. 2, 1987, eff. Oct. 1, 1987; Apr. 25, 1988, eff. Nov. 1, 1988; Pub. L. 100–690, title VII, § 7075(a), Nov. 18, 1988, 102 Stat. 4405; Apr. 24, 1998, eff. Dec. 1, 1998; Apr. 26, 2011, eff. Dec. 1, 2011.)