On April 6, 1658, the judicial records of the Ayr Court identified Johne Walker as a subject of criminal proceedings regarding the charge of witchcraft. Although the surviving documentation links him to the collective of individuals known as the "Dunlop witches," his primary residence was recorded in the coastal parish of Ardrossan. The legal process against him had been set in motion days earlier, following the issuance of two porteous rolls—the official indictments used to summon the accused—which mandated the appearance of the entire 1658 cohort for trial.
Despite the formal summons, Johne did not appear before the court to answer the charges levied against him. The administrative records from the proceedings confirm that he could not be located by the authorities, leading the court to officially record him as a fugitive. Consequently, while the judicial machinery of the seventeenth-century Scottish state was prepared to examine his alleged involvement in witchcraft, the trial did not proceed with him in custody, leaving his movements and ultimate fate absent from the historical record.