Jury service is the foundation of our system of justice and one of the most important duties of a citizen. You have just received a summons to report for jury duty and are probably wondering, "What do I do?What is this all about? Purpose of This Handbook The purpose of this handbook is to acquaint trial jurors with the general nature and importance of their role as jurors. The following procedures are applicable to jury trials conducted before the Honorable. Michelle Sisco Circuit Judge:. You may fill out an affidavit at the Clerk's office which will place your name on the list of those eligible for selection. Welcome to Federal Jury Service. The Tampa federal court has jurisdiction over the counties of Hardee, Hernando, Hillsborough,. A Petit Jury hears testimony and views evidence in cases being brought to trial then deliberates and reaches a verdict.