Versions of Montana Rules of Evidence R. 401 on LawServer 2023 Montana Rules of Evidence R. 401 2022 Montana Rules of Evidence R. 401 2019 Montana Rules of Evidence R. 401 2018 Montana Rules of Evidence R. 401 2016 Montana Rules of Evidence R. 401 2014 Montana Rules of Evidence R. 401 2013 Montana Rules of Evidence R. 401