1Any of the following offences under this Act—
(a)an offence under Part 1 against a person under the age of 16,
(b)an offence under Part 4 (but not an offence of engaging while an older child in sexual conduct with or towards another older child (section 37(1)) or engaging while an older child in consensual sexual conduct with another older child (section 37(4)),
(c)sexual abuse of trust (section 42) of a person under the age of 16,
(d)sexual abuse of trust of a mentally disordered person (section 46) of a person under the age of 16.