s 189 Consecutive sentences of service detention
(1) A court which passes a sentence of service detention on a person may direct that the sentence shall take effect from the end of any other sentence of service detention— (a) that has been passed on him on a previous occasion; or (b) that the court passes on him on the same occasion. (2) In subsection (1) “ court ” does not include the Summary Appeal Court. (3) Where an officer or the Summary Appeal Court awards a person a term of service detention, the officer or court may direct that the award shall take effect from the end of any other sentence of service detention that has been passed on him on a previous occasion. (4) This section is subject to section 244 (limit on combined term of sentences of service detention).