She was associated with Anabaptists in Kent, some of them immigrants who had fled persecution in the low countries (Belgium, the Netherlands, and Luxembourg).
[1] Her first conflict with church and state came after she spoke against the sacrament of the altar, but she was released from imprisonment by a commissary of Thomas Cranmer and Christopher Nevinson.
Then followed a year's imprisonment during which various well-known religious figures were enlisted to try to persuade her to recant.
[1] John Foxe approached royal chaplain John Rogers to intervene to save Joan, but Rogers refused with the comment that burning was "sufficiently mild" for a crime as grave as heresy.
Some well-known stories about Bocher were first recounted by Robert Parsons in 1599: for instance, Joan's friendship with Anne Askew and her involvement in smuggling Tyndale's New Testament into England, and into the royal court under her skirts.