Fla. Stat. § 40.221

A clerk of the court, under supervision of a judge of any court of record, shall, in a manner deemed to produce a result by lot and at random, select from the final juror candidate list such number of persons as he or she deems necessary or expedient for a jury venire, to be returnable at such time as the judge shall specify, from which such venire or venires any jury may be organized, including a grand jury when drawn by or upon order of a judge of the circuit court. The clerk of the court shall keep the list in a secure place.