By _23 H. 6. c. 9._ Sheriffs, undersheriffs, bailiffs of franchises, &c. shall let out of prison all manner of persons by them arrested or being in their custody by force of any writ, bill or warrant in any action personal, or by cause of indictment of trespass, upon reasonable sureties of sufficient persons, having sufficient within the counties where such persons be so let to bail or mainprise, to keep their days in such place as the said writs, bills or warrants shall require: Such person or persons which shall be in their ward by condemnation, execution, capias _utlagat'_ or _excommunicatum_, surety of the peace, and all such persons which shall be committed to ward by special commandment of any justice, and vagabonds refusing to serve according to the form of the statute of labourers, only except. And that no sheriff, nor any of the officers or ministers aforesaid shall take or cause to be taken, or make any obligation for any cause aforesaid, or by colour of their office, but only to themselves, of any person, nor for any person which shall be in their ward by the course of the law, but by the name of their office, and upon condition written, that the said prisoners shall appear at the day contained in the said writ, bill or warrant, and in such places as the said writ, bill or warrant shall require. And if any of the said sheriffs, or other officers or ministers aforesaid, take any obligation in other form by colour of their offices, that it shall be void; and that he shall take no more for the making of any such obligation but 4d. (penalty, treble damages to the party grieved and 40l. half to the King and half to the party suing.) And justices of assises, of the bench and of the peace, to enquire, hear and determine, &c.