You are correct Say It and New Age.

She’s a lawyer prosecuting in her own behalf and as such is an officer of the court.

Federal Rules of Civil Procedure

Rule 45. Subpoena

(3) Issued by Whom.

The clerk must issue a subpoena, signed but otherwise in blank, to a party who requests it. That party must complete it before service. An attorney also may issue and sign a subpoena as an officer of:

(A) a court in which the attorney is authorized to practice; or

(B) a court for a district where a deposition is to be taken or production is to be made, if the attorney is authorized to practice in the court where the action is pending.