Trill law
Trill law was the legal system of the Trillian government on Trill.
During a dispute regarding the Tal symbiont in 3189, Commissioner Vos suggested that Trill law allowed for the forced separation of Tal from its Human host, Adira. He further insisted that, Trill not being a member of the Federation, Trill law took precedence in the matter. (DIS: "Forget Me Not")