During a university orientation, several students in the same program got to know one another and started to hang out. One of the male students, attracted to a female student, started asking her inappropriate questions of a sexual nature, sometimes when they were alone but also when they were with other students. One of the other students reported the comments to an advisor, who was required to report it to the university, and an investigation was opened by the university$$s Title IX Office. During the investigation, the female student was asked to document what happened and produced screenshots of texts and wrote down conversations that had occurred. Witnesses were also asked to provide written documentation of the inappropriate questions and the context in which they were asked. The investigation took several months, with the final decision requiring the male student to have no contact with the female student.

Why was it important for the student to provide written communication in this situation?