same be not forthcoming, it  shall be the duty of the judge to require its production under penalty of contempt. [413-5.] SECTION  1948 . Transfer of Custody of Jail to Constabulary Officer . — In any province in which, in the opinion of the Governor-General, the provincial jail is not safely guarded, he shall have authority by executive order to direct that the senior Constabul ary officer of such province shall take custody of the jail under the supervision of the provincial governor and guard the prisoners therein, using for this purpose members of the Philippine Constabulary as jail guards. Such action shall in no wise alter the liability of the province for the expenses incident to the maintenance of prisoners or the keeping, repair, and construction of the jail; but the payment and subsistence of the Constabulary guard shall be at the expen se of the Constabulary. [610-5; Ex. Or. 72 (1903).] SECTION  1949 . Preservation of Documents Relating to Confinement of Prisoners . — All warrants and documents of any kind, or attested copies thereof, by which a prisoner is committed or liberated, shall be regularly indorsed, filed, and kept in a suitable bo x by such governor or by his deputy acting as jailer, and such box, with its contents, shall be delivered to the successor of the officer having charge of the prisoner. [413-9.] When a prisoner is confined by virtue of any process directed to the governor or sheriff and which shall require to be returned to the court whence it issued, such governor or sheriff shall keep a copy of the same, together with his return made thereon, wh ich copy, duly certified by said governor or sheriff, shall be presumptive evidence of his right to retain such prisoner in his custody. [413-8.] SECTION  1950 . Transfer of Prisoners to Jail of Neighboring Province . — In case there should be no jail in any province, or in case a provincial jail of any province be insecure or insufficient for the accommodation of all provincial prisoners, it shall be  the duty of the provincial board to make arrangements for the safe-keeping of the prisoners of the province with the provincial board of some neighboring province in the jail of such neighboring province, and when such arrangement has been made it shall be  the duty of the officer having custody of the prisoner to commit him to the jail of such neighboring province, and he shall be 577 Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011