1693 when Widow Chambers of Upaston was arrested for witchcraft and taken to Beccles Gaol was the year after the Witches of Salem trials. The theory now stands that these women (and men) really did believe they had supernatural powers because they were affected by ergot growing on rye when there was a wet harvest. LSD is a chemical form of ergot. Salem was a rye growing area as were Suffolk and Essex where there was a high incidence of 'witches'.
The poor woman was 'walked' in the gaol. The practice of 'walking' was sleep deprivation - the prisoner forcibly kept awake for days and walked up and down the cell until a confession was made. This seems rather strange as the widow was more than ready to confess to any magical killings as shown in the following description of the case in 1720 by Francis Hutchinson D.D. in his Historical Essay concerning Witchcraft.
Widow Chambers of Upaston in Suffolk, a diligent industrious poor Woman, committed to Beccles Goal [sic] upon an accusation of Witchcraft, and died in Prison before her Tryal. After she had been walk'd betwixt two, she confessed a great many things of herself, and in particular she said, she had kill'd her Husband, and the Lady Blois; though the near relations of that good Lady were satisfied that she died a fair Death, without any hurt from that poor Woman; and some for Experiment sake ask'd her, if she had not killed such and such; and she confessed she had, though the Persons were then living.