Terry Nicholas Trieweiler (born March 21, 1948) was a justice of the Montana Supreme Court from 1990 to 2003.
He graduated with academic honors from Dubuque's Wahlert Catholic High School in 1966, where he was a member of the football and wrestling teams.
[4] Trieweiler served as a guest lecturer at the University of Montana Law School in 1988.
[4] In 1990, Trieweiler became an instructor of civil procedure at the University of Montana Law School.
[7] On the court, he wrote the opinion in the noted open-fields doctrine case of State v. Bullock,[8] in which the court held that individuals have a privacy interest in property marked by fencing or "no trespassing" signs.