When someone, by assault or otherwise with violence or by the threat of a criminal act, compels a person to have sexual intercourse or a comparable sexual act.
Legal Source
Criminal Code, Chapter 6, Section 1.
Observations
Rape may also be committed when the victim has not been compelled, but the perpetrator has improperly exploited the fact that a person is in a helpless state, owing to, for instance, unconsciousness, sleep, intoxication or other influence of drugs, illness, bodily injury or mental impairment.