What is prosecutable under Michigan's sexual assault statute?

To be convicted of first-degree criminal sexual conduct, the sexual penetration can be for any purpose.  The prosecutor is not required to prove that the individual who perpetrated the sexual penetration harbored any criminal intent.  Under Michigan law, an individual is guilty of first-degree criminal sexual conduct if he or she takes part in sexual penetration, which is interpreted to mean anal intercourse, sexual intercourse, fellatio, cunnilingus, or any other intrusion, regardless of how minimal, of any object into the anal or genital openings of another individual's body or of any part of another's body.  Under Michigan Criminal Law 750.520(b)(2), a person convicted of first-degree criminal sexual conduct may serve imprisonment for life or any term of years, and he or she may not be sentenced to probation.