Defining Sexual Assault

The term "sexual assault" covers behavior from unwanted touching to rape. Each state has its own legal definition and criminal code, and thus definitions of acts that constitute sexual assault vary.

Northwestern University defines sexual assault as:

Sexual Penetration without Consent: Any penetration of the sex orgrans, anus or mouth of another person when consent is not present. 

Sexual Contact without Consent: Knowingly touching or fondling a person's genitals, breats, thighs, groin or buttocks, or any other contact of a sexual nature (including by bodily fluids), when consent is not present. 

(Language taken from Northwestern University Sexual Misconduct, Stalking and Dating and Domestic Violence Policy 2014)

Illinois State law defines sexual assault as:

Sexual penetration by force or threat of force or an act of sexual penetration when the victim was unable to understand the nature of the act or was unable to give knowing consent. (720 ILCS 5 Criminal Code of 1961 §12-13)

Illinois law defines sexual penetration as:

Any contact, however slight, between the sex organ or anus of one person by an object, the sex organ, mouth, or anus of another person, or any intrusion, however slight, of any part of the body of one person or of any object into the sex organ or anus of another person, including but not limited to cunnilingus, fellatio, or anal penetration. Evidence of emission of semen is not required to prove sexual penetration (720 ILCS 5 Criminal Code of 1961 §12-12(f)).