Ad extirpanda

Ad extirpanda
Latin for 'To eradicate'
Papal bull of Pope Innocent IV
Coat of arms of Pope Innocent IV
Signature date 15 May 1252
SubjectOn the use of torture against heretics

Ad extirpanda ("To eradicate"; named for its Latin incipit) was a papal bull promulgated on Wednesday, May 15, 1252 by Pope Innocent IV which authorized under defined circumstances the use of torture by the Inquisition as a tool for interrogation.