VIIIf Petitioner be in custody, and is not entitled to be discharged, he may be brought up by Warrant.
And be it enacted, That whenever any such Petitioner is a Prisoner under any Process, Attachment, Execution, Commitment, or Sentence, and is not entitled to his Discharge in manner aforesaid, the Commissioner may, by Warrant under his Hand directed to the Person in whose Custody such Petitioner is confined, cause such Petitioner to be brought before him for Examination at any Sitting of the Court, either public or private, and the Expence of bringing such Petitioner shall be paid out of his Estate, and such Person shall be indemnified by the Warrant of the Commissioner for bringing up such Petitioner.