There are several ways to both attack this request while and attempt to get your witness in Court. First and foremost, you should write a letter to the head of the agency requesting the witness, and they can consent to his appearance. Next, get a copy of the agency’s regulations to see if the witness meets the definition of “employee” under the regulations and the Housekeeping Statute. If all else fails, you will most likely end up in a United States District Court to review how Touhy applies to your particular fact situation. Remember that Touhy involved a full-time FBI agent and his records of investigation. The further we get from that, the more likely the witness should be amenable to a state-court subpoena.
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