Mont. Code Ann. § 52-3-821

In any proceeding resulting from a report made pursuant to the provisions of this part or in any proceeding where the report or its content is sought to be introduced into evidence, the report or its content or any other fact related to the report or to the condition of the vulnerable adult who is the subject of the report may not be excluded on the ground that the matter is or may be the subject of a privilege granted in Title 26, chapter 1, part 8, except the attorney-client privilege granted by 26-1-803.