(a) Attendance. A witness summoned by a subpoena in an adjudicatory hearing shall remain in attendance at the adjudicatory hearing until excused by the court or by both parties. A witness who departs without being excused properly may be held in criminal contempt of court.
(b) Subpoenas Generally.
(1) Subpoenas for testimony before the court and subpoenas for production of tangible evidence before the court may be issued by the clerk of the court, by any attorney of record in an action, or by the court on its own motion.
(2) Except as otherwise required by this rule, the procedure for issuance of a subpoena (except for a subpoena duces tecum) by an attorney of record in a proceeding shall be as provided in the Florida Rules of Civil Procedure.
(c) Subpoenas for Testimony or Production of Tangible Evidence.
(1) Every subpoena for testimony or production of tangible evidence before the court shall be issued by an attorney of record in an action or by the clerk under the seal of the court. The subpoena shall state the name of the court and the title of the action and shall command each person to whom it is directed to attend and give testimony or produce evidence at a time and place specified.
(2) On oral request of an attorney of record, and without a witness praecipe, the clerk shall issue a subpoena for testimony before the court or a subpoena for tangible evidence before the court. The subpoena shall be signed and sealed but otherwise blank, both as to the title of the action and the name of the person to whom it is directed. The subpoena shall be filled in before service by the attorney.
(d) Subpoenas for Production of Tangible Evidence. If a subpoena commands the person to whom it is directed to produce the books, papers, documents, or tangible things designated in it, the court, on motion made promptly and in any event at or before the time specified in the subpoena for compliance with it, may
(1) quash or modify the subpoena if it is unreasonable and oppressive, or
(2) condition denial of the motion on the advancement by the person in whose behalf the subpoena is issued of the reasonable cost of producing the books, papers, documents, or tangible things.