A person commits an offence under this section if he commits any offence with the intention of committing a relevant sexual offence.
In this section, "relevant sexual offence" means any offence under this Part (including an offence of aiding, abetting, counselling or procuring such an offence).
A person guilty of an offence under this section is liable on conviction on indictment, where the offence is committed by kidnapping or false imprisonment, to imprisonment for life.
Unless subsection (3) applies, a person guilty of an offence under this section is liable—