A Jury Manager’s source list (or master list) is one of, if not the most important parts of their operation. It is the list they use to randomly select constituents and subsequently summons. Although every jury operation uses a source list, its composition is different from state to state and even county to county. Some use their state’s voter’s registration information. Some use the state’s driver’s license database or tax records. Some use a combined list consisting of several sets of information to include as many potential jurors as possible.