I. Absence of consent
The prosecution must prove beyond reasonable doubt that there was no consent. The prosecution does not have to show that there has been resistance from the victim to proof that she did not provide consent. The victim might have been unconscious at the material time and hence, could not consent to the act of sexual intercourse. Consent must be distinguished from submission. A woman threatened with a knife might not resist sexual intercourse out of fear. In such a case, she would not have been willing or free to consent to the act of sexual intercourse.
Consent is absent where sexual intercourse is obtained by fraud or deception as to the nature of the act. For example, if a man deceives a girl that the act of intercourse is part of the necessary medical examination, there is no consent. However, if the deception relates not to the nature of the act of intercourse but to the objectives or reasons, consent may not be vitiated. For example, in a case in the Court of First Instance (HKSAR v Chow Kam-wah), the defendant procured sexual intercourse with a superstitious female victim by falsely representing that by having sexual intercourse with him the ghost following the victim would be exorcised. He was charged and convicted not of rape but of another offence of procuring a woman to do an unlawful sexual act by false pretences contrary to section 120(1) of the Crimes Ordinance.