I Nyoman Sirtha is an Emeritus Professor at the Faculty of Law of Udayana University who teaches Hukum Adat (Adat/Customary Law), Sociology of Law, and Psychology of Law. I Nyoman Sirtha also expands his legal knowledge into cultural and tourism aspects while managing the Tourism Study Master Program at Udayana University. He was a national assessor on the National Higher Education Accreditation Board.