Rape is a type of sexual assault usually involving sexual intercourse, which is initiated by one or more persons against another person without that person's consent. The act may be carried out by physical force, coercion, abuse of authority or with a person who is incapable of valid consent.
There are several types of rape, generally categorized by reference to the situation in which it occurs, the sex or characteristics of the victim, and/or the sex or characteristics of the perpetrator.
Different types of rape include but are not limited to: date rape, gang rape, marital rape or spousal rape, incestual rape, child sexual abuse, prison rape, acquaintance rape, war rape and statutory rape.
Sexual violence, and rape in particular, is considered the most under- reported violent crime.
Thus, the number of reported rapes is lower than both incidence and prevalence rates.Since the vast majority of rapes are committed by persons known to the victim, the initiation and process of a rape investigation depends much on the victim's willingness and ability to report and describe a rape.
When part of a widespread and systematic practice, rape and sexual slavery are recognized as crimes against humanity and war crimes. Rape is also recognized as an element of the crime of genocide when committed with the intent to destroy, in whole or in part, a targeted ethnic group.