(1)At the end of section 65 of the Summary Jurisdiction (Scotland) Act 1954 (which among other things relates to the procedure in courts of summary jurisdiction on the determination of an appeal) there shall be added the following subsection :—
“(4)Where an appellant who has been granted interim liberation does not thereafter proceed with his appeal, the court from which the appeal was taken shall have power, where at the time of the abandonment of the appeal the person is serving a term or terms of imprisonment imposed subsequently to the conviction appealed against, to order that the sentence or, as the case may be, the unexpired portion of that sentence relating to that conviction should run from such date as the court may think fit, not being a date later than the date on which the term or terms of imprisonment subsequently imposed expire.”
(2)At the end of section 71 of the Summary Jurisdiction (Scotland) Act 1954 (which relates to the powers of the High Court of Justiciary on the hearing of appeals) there shall be added the following subsection:—
“(7)Where at the time an appeal is dismissed or refused as aforesaid the appellant is serving a term or terms of imprisonment imposed subsequently to the conviction appealed against, the High Court shall have the like powers in regard to him as may be exercised by a court of summary jurisdiction in pursuance of subsection (4) of section sixty-five of this Act.”