in subsection (3), after paragraph (e) insert—

“(ea)

for the variation or rescission by the court of a sentence passed by it, or an order under section 193 made by it, in a case where it appears to the court that it had no power to award such a sentence or (as the case may be) to make such an order;”;

after subsection (6) insert—

“(6A)

Rules made by virtue of subsection (3)(ea) may make provision about the commencement of sentences or orders varied by the court (including provision conferring on the court a power to direct that a sentence is to take effect otherwise than as mentioned in section 289(1)).”