PART VII—PERSONS IN TRANSIT TO ICC OR SERVING SENTENCES IMPOSED BY ICC
Enforcement of Sentences in Kenya
143. (1) An ICC prisoner serving a sentence in Kenya may—
(a) be extradited to another country in accordance with the Extradition (Commonwealth Countries) Act or the Extradition (Contiguous and Foreign Countries) Act, either—
(i) at the completion of the sentence; or
(ii) during the sentence, but only for a temporary
period;
(2) Notwithstanding subsection (1)—
(a) a person to whom subsection (1) (a) applies may not be extradited to another country without the prior agreement of the ICC;
Transfer of sentenced person to another State
Transfer of the person upon completion of sentence
EDIT.