Kentucky Appendix C Advance Authorization for Investigative, Expert or Other Services is a document that is used to authorize the state of Kentucky to pay for investigative, expert, or other services that are needed to complete a case or investigation. It is a form that must be completed by the requesting agency and approved by the Kentucky Attorney General's Office. It is used to pay for services such as private investigators, forensic analysts, expert witnesses, and other services related to the investigation or case. The types of Kentucky Appendix C Advance Authorization for Investigative, Expert or Other Services include: Private Investigator Authorization, Expert Witness Authorization, and Other Services Authorization.