Answer: they shouldn’t. Sexual assault is a law enforcement issue. And the now-discarded Obama-era “guidelines” for handling such cases at colleges were no help:
As K.C. Johnson of Brooklyn College, who has followed the application of Title IX harassment law on campus for years, noted when the Obama guidelines first appeared, the question of innocent students being wrongfully convicted of assault or harassment was never a question of if, but when: “A 2016 study from UCLA public-policy professor John Villasenor used just one of the changes—schools employing the lowest standard of proof, a preponderance of the evidence—to predict that as often as 33 percent of the time, campus Title IX tribunals would return guilty findings in cases involving innocent students.” In fact, hundreds of wrongfully accused students have taken legal action. So far, more than half of the students accused of sexual assault or harassment under the Obama-era Title IX guidance who have sued their schools have won (or received settlements from their schools). It’s a sign of how distorted campus politics has become that restoring some semblance of due process and presumption of innocence to those campuses prompts such overheated rhetoric on the left.