The sequestration of expert witnesses falls under North Dakota’s Rules of Evidence, Rule 615. N.D. CENT. CODE ANN. § 6-615 (West 2017). This rule requires the court to exclude a witness from the courtroom as to not hear testimony of other witnesses when requested by a party or through an order of its own. Id. The rule has four exceptions of individuals the court cannot exclude and expert witnesses fall under the third exception. Id. The third exception is for “a person whose presence a party shows to be essential to presenting the party’s claim or defense.” Id.