Most of the time there's a demand for a written confession, it's to get evidence against the student. Despite what anyone might say about how it's important to

Most of the time there's a demand for a written confession, it's to get evidence against the student. Despite what anyone might say about how it's important to "own up" to your mistakes, when there's already solid evidence against someone, you confront them first and then make them write an apology. You don't ask for a confession up front unless you have nothing to work with.