4In section 71 of each of the 1955 Acts and in section 43 of the 1957 Act (scale of punishments and supplementary provisions), for the proviso in subsection (1) there shall be substituted the following proviso—
“Provided that a punishment such as is mentioned in paragraph (e) of this subsection shall not be treated as a less punishment than a punishment such as is mentioned in paragraph (b) or (bb) if the term of detention is longer than the term of imprisonment or, as the case may be, than the term of detention by virtue of the custodial order.”