If a student at a college or university is accused of cyber bullying, it is a very serious matter. Schools take these kinds of cases very seriously. They do not want to be the next school on the news because a student who was allegedly subject to cyber bullying does something to harm themselves or even potentially others. So schools do take these cases very seriously.
Evidence that could potentially exonerate the accused student would need to be analyzed and compiled, and at the given time presented to the school so that the allegations can be disputed. It can include computer logs, phone logs, text messages, whatever would it be relevant to help in exonerating the accused student. Because of what's at stake and because schools are often in a rush to judgment and do not have an accused student's rights and interest in mind, an experienced attorney advisor should be involved from the start of the process to help navigate the process and protect an accused student's rights and interests.