This section applies where an offender is committed by a magistrates' court for sentence under—
section 14(2) (committal for sentence on summary trial of offence triable either way),
section 15(2) (committal for sentence of dangerous adult offenders), or
section 18(1) (committal for sentence on indication of guilty plea to offence triable either way).
Subsection (5) applies where a magistrates' court—
commits an offender under section 18(1) to be dealt with in respect of an offence (“the offence”), but
does not make a statement under section 18(4) (statement of power to commit under section 14(2) or 15(2)).
Unless the offender is convicted before the Crown Court of at least one of the offences for which the magistrates' court has sent the offender for trial (see section 18(1)(b))—
subsection (2)(b) does not apply, and
the Crown Court may deal with the offender for the offence in any way in which the magistrates' court could have dealt with the offender for it.
Section 20A(1) of the Magistrates' Courts Act 1980 (which relates to the effect of an indication of sentence under section 20 of that Act) does not apply in respect of a specified offence (see section 306)—
in respect of which the offender is committed under section 15(2) (dangerous adult offenders), or
in respect of which—
the offender is committed under section 18(1) (guilty plea to offence triable either way), and
the court makes a statement under section 18(4) that, in its opinion, it also has power to commit the offender under section 15(2).