LE THIERS® must be manufactured according to stringent quality rules. In order to guarantee its genuineness and origin, all its components and the whole processing steps must be entirely carried out within the Thiers Cutlery Area. Despite economic globalization, The Thiers Cutlers’ Guild sticks to guaranteeing the authenticity of LE THIERS®knife and collective trademark through “The Board of Jurors”, a controlling Body inspired by ancient Cutlers’ Mastership regulations called Jurande. This Board warrants the honest making and trading of all Fellow knife makers.