Investigation report under the Title IX Final Rule is the report that would be produced by the school during the course of the investigation. It would include the information and evidence that was gathered and collected during the course of the investigation, the allegations themselves, the statements from the complainant, from the respondent, from the witnesses, expert reports that were submitted as applicable to the circumstances, documentary evidence, such as text messages, social media posts, anything related.
The investigation report needs to be provided by the school to the complainant and the respondent in either electronic form say by via email or via say hard copy. The complainant and respondent would have 10 days to respond to inspect review and respond to the investigation report, which is a critical step unto itself in a Title IX investigation.
Having an experienced advisor that would assist you through the process, especially when preparing and attending to the investigation report and responding to it also is incredibly important. An experienced attorney advisor will help you best understand and navigate the process. They should be involved as early as possible in the process.