90An offence under section 66 of this Act (exposure) if—E+W+S+N.I.
(a)where the offender was under 18, he is or has been sentenced in respect of the offence to imprisonment for a term of at least 12 months;
(b)in any other case—
(i)the victim was under 18, or
(ii)the offender, in respect of the offence or finding, is or has been—
(a)sentenced to a term of imprisonment,
(b)detained in a hospital, or
(c)made the subject of a community sentence of at least 12 months.