Ad extirpanda
| Ad extirpanda Latin for 'To eradicate' Papal bull of Pope Innocent IV | |
|---|---|
| Signature date | 15 May 1252 |
| Subject | On 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.