8. Detention of serious offenders aged under 18.

Where a person aged under 181 is convicted on indictment of:

  1.  

    (1)     an offence punishable in the case of a person aged 212 or over with imprisonment for 14 years or more, not being an offence the sentence for which is fixed by law3;

  2.  

    (2)     an offence4 of sexual assault5;

  3.  

    (3)     a child sex offence6 committed by a child or young person7;

  4.  

    (4)     an offence8 of sexual activity with a child family member9;

  5.  

    (5)     an offence10 of inciting a child family member to engage in sexual activity11; or

  6.  

    (6)     a specified firearms offence in specified circumstances