"There are no national data that let us know the prevalence of third-party reports, but they appear to be a significant source of allegations. The University of Michigan’s most recent “Student Sexual Misconduct Annual Report” says that the school’s Office for Institutional Equity “often receives complaints about incidents from third parties.” Yale releases a semiannual report of all possible sexual-assault and harassment complaints. Its report for the latter half of 2015 included a new category: third-party reports in which the alleged victim, after being contacted by the Title IX office, refused to cooperate. These cases made up more than 30 percent of all undergraduate assault allegations."