According to the FBI’s Crime Classification Manual, the motivations for rape, the most common sex crime, can be divided into four categories: “criminal enterprise rape,” “personal-cause sexual assault,” “group-cause sexual assault,” and “sexual assault not classified elsewhere.”
While the latter is obviously a vague definition for undetermined sexual assaults, the former three categories can be subdivided further.
- Criminal enterprise rape – Although not as common as personal-cause assaults, this type can be classified into “primary felony rape” (or the act of raping a victim during the commission of another crime, where the other crime was the primary goal) and “secondary felony rape” (where the rape was the primary goal and another crime was committed in addition).
- Personal-cause assaults – This classification includes domestic rape (or victimization by a spouse, relative, or household member), entitlement rape (or victimization by acquaintances, employers, superiors, etc.), anger rape (usually victims are targeted because of their age, gender, race, or another specialized criteria that triggers rage in the offender), sadistic rape (where the offender explicitly intends to cause pain and fear in the victim), abduction rape (where the victim is transported to another location), and sexual offenses against children.
- Group-cause assaults – Although there are several different aspects of group and social dynamics at play (including diffused responsibility and the development of gang culture), this category could be divided into the same subdivisions as personal-cause assaults, except, while the personal-cause assaults are classified with one or two offenders, the group-cause assault must have three or more.