This section applies where—
a court proposes to make a detention and training order in respect of an offence,
the offender was tried for the offence, or is to be sentenced—
after having been extradited to the United Kingdom, and
without having first been restored or had an opportunity of leaving the United Kingdom, and
the offender was kept in custody for any period while awaiting extradition to the United Kingdom.
The court must—
specify in open court the number of days for which the offender was kept in custody while awaiting extradition, and
take account of those days in determining the term of the detention and training order.