20.—(1) This section applies to any person accused of an offence under the law of a listed territory who is returned to that territory as mentioned in section 19(1) above.
(2) If in the case of a person to whom this section applies either—
(a)proceedings against him for the offence for which he was returned are not begun within the period of six months beginning with the day of his arrival in that territory on being returned; or
(b)on his trial for that offence, he is acquitted or discharged (whether conditionally or unconditionally),
the Governor may, if he thinks fit, on the request of that person, arrange for him to be sent back free of charge and with as little delay as possible to the jurisdiction of the country or British overseas territory from which he was returned.