Stannary courts
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Courts in Devonshire and Cornwall for the administration of justice among the miners and tinners. These courts were held before the lord warden and his deputies by virtue of a privilege granted to the workers of the tin-mines there, to sue and be sued in their own courts only, in order that they might not be drawn away from their business by having to attend law-suits in distant couris.
Brown.