If someone within your business or practice has received a formal request from the U.S. Department of Justice (DOJ), a federal Office of Inspector General (OIG), a state Attorney General’s Office, or any other state or federal investigative or law enforcement agency, the first thing you need to do is understand the nature of the request. There will be several steps you need to take right away, but the specific requirements for your situation will depend upon whether the request is a civil investigative demand, an administrative subpoena, or a subpoena from a grand jury.