"(1) A person (A) commits an offence if— (a) he intentionally causes another person (B) to engage in an activity. (b) the activity is sexual. (c) B does not consent to engaging in the activity, and (d) A does not reasonably believe that B consents."
"...it is to be conclusively presumed— (a) that the complainant did not consent to the relevant act, and. (b) that the defendant did not believe that the complainant consented to the relevant act. (2) The circumstances are that— (a) the defendant intentionally deceived the complainant as to the nature or purpose of the relevant act; (b) the defendant intentionally induced the complainant to consent to the relevant act by impersonating a person known personally to the complainant."