On 17 February 1680, La Voisin was put on trial, and was convicted of witchcraft to execution by burning two days later. In the days following her verdict until her execution, she was formally interrogated under torture, and the official document stated that she was tortured enough to beg for mercy. However, while an official permit of torture was issued, the police were given to understand that the permit was not to be used, and Gabriel Nicolas de la Reynie stated that La Voisin was in reality never subjected to torture. Madame de Sevigne, who observed La Voisin shortly before her execution, described her to be able to move so freely and so seemingly healthy that it did not seem possible for her to have been subjected to torture. These final interrogations did not reveal anything new.