According to Michigan Law, a third-degree assault involves sexual penetration with at least one of the following circumstances: the person is between the age of 13 and 16, force or coercion is used, the victim is mentally or physically helpless and more.

It is a felony with a sentence of no more than 15 years of imprisonment.

A first-degree criminal sexual conduct allegedly occurred at on March 25 at Rather Hall. 

Under Michigan Law, it involves sexual penetration with at least one of the following circumstances: the person is younger the 13, more than one person is involved in the assault, a weapon is used for force or coercion and more.

It is a felony and carries a sentence of lifetime imprisonment.

"They're both open ongoing investigations," Capt. Doug Monette said. "We're using the appropriate amount of police resources. We don't feel that ... there's any harm potentially for the campus at this point."