A criminal charge of sexual assault requires sexual penetration or sexual contact with someone under the age of 13 when the actor is more than 4 years older. Battery refers to the unlawful use of direct or indirect force that either causes bodily injury or is perceived as offensive, and assault refers to an attempt or threat of assault. When an individual is at least four years older than a victim who is not yet 13 years old and engages in an act of sexual contact, it can result in a charge of aggravated sexual assault.