In England the trial by jury developed considerable freedom in evaluating evidence and condemning on circumstantial evidence, making torture to extort confessions unnecessary. For this reason, in England, a regularized system of judicial torture never existed and its use was limited to political cases. Torture was in theory not permitted under English law, but in Tudor and early Stuart times, under certain conditions, torture was used in England. For example, the confession of Marc Smeaton at the trial of Anne Boleyn was presented in written form only, either to hide from the court that Smeaton had been tortured on the rack for four hours, or because Thomas Cromwell was worried that he would recant his confession if cross-examined. When Guy Fawkes was arrested for his role in the Gunpowder Plot of 1605 he was tortured until he revealed all he knew about the plot. This was not so much to extract a confession, which was not needed to prove his guilt, but to extract from him the names of his fellow conspirators. By this time torture was not routine in England and a special warrant from King James I was needed before he could be tortured. The wording of the warrant shows some concerns for humanitarian considerations, specifying that the severity of the methods of interrogation were to be increased only gradually until the interrogators were sure that Fawkes had told all he knew.