I would avoid making the language of the law that specific because it inherently narrows your scope.
Instead I would grant the power to subpoena any and all data necessary to establish a candidate’s eligibility. You can add a clause indicating that such data includes but is not limited to ... [insert list]
That sounds reasonable. And you wouldn’t feel the need to say anything about protecting the databases? That would be worked out between the requestor/auditor and the legal department of the agency with the vital records?
I feel so much better about this after talking with you. This was one thing I really didn’t know about and it helps to know if what is being asked is reasonable and workable. Thank you so much for your input.