Mont. Code § 50-20-606
In a civil or criminal proceeding brought under 50-20-604 or 50-20-605, the court shall determine whether the anonymity of the woman on whom an abortion has been performed or attempted must be preserved from public disclosure if the woman does not consent to the disclosure. The court, on motion or sua sponte, shall make a determination and, on determining that the woman's anonymity should be preserved, shall issue orders to the parties, witnesses, and counsel and shall direct the sealing of the record and exclusion of individuals from courtrooms or hearing rooms to the extent necessary to safeguard the woman's identity from public disclosure. The order must be accompanied by specific written findings explaining why the anonymity of the woman should be preserved from public disclosure, why the order is essential to that end, how the order is narrowly tailored to serve that interest, and why no reasonable, less restrictive alternative exists. In the absence of written consent of the woman on whom an abortion has been performed or attempted, anyone, other than a public official, who brings an action under 50-20-605(1) or (2) shall do so under a pseudonym. This section may not be construed to conceal from the defendant or from attorneys for the defendant the identity of the plaintiff or of witnesses.
§ 50-20-606, MCA