zero tolerance

política de mano dura, cero de tolerancia, no se tolera en absoluto

Ex: The large number of complaints from staff and students concerning the use of mobile telephones in the libraries led to the introduction of a pilot zero tolerance scheme to ban their use.

(n.) = tolerancia cero, cero tolerancia
Ex: The large number of complaints from staff and students concerning the use of mobile telephones in the libraries led to the introduction of a pilot zero tolerance scheme to ban their use.