Thank you for the opportunity to help you with your question!
the work of the member of the internal affairs is not enforcement function but policing function. Its main function is to report what is happening.in this scenario one should write a correct report as per the directives of the lieutenant. The sole purpose of having internal affairs department is to investigate and find the truth to what occurred when an officer is
accused of misconduct. An investigation can also give insight on a
policy itself that may have issues.
Please let me know if you need any clarification. I'm always happy to answer your questions.