This section applies where—
on the summary trial of an offence within paragraph (a) or (b) of the table in section 249(1) (offences punishable with imprisonment for 14 years or more and certain sexual offences), a person is convicted of the offence,
the person is aged under 18 at the time of conviction, and
the court is of the opinion that—
the offence, or
the combination of the offence and one or more offences associated with it,
was such that the Crown Court should have power to deal with the offender by imposing a sentence of detention under section 250.
The court may commit the offender in custody or on bail to the Crown Court for sentence in accordance with section 22(2).
For powers of the court, where it commits a person under subsection (2), also to commit in respect of other offences, see section 20.