A person receives a summons for jury duty by random selection from a list maintained by the courts, notes FindLaw. A notice is sent to the selected individual, which indicates the day of the court appearance. While the laws vary from state to state, most mandate an appearance once notified.
The second stage of jury selection begins with the court and attorneys narrowing down the group of individuals, explains FindLaw. Judges and attorneys interview potential jurors, and attorneys have the ability to challenge an individual they feel is not a good fit, such as someone who has a relationship with a local law enforcement officer. If the pool of people is too large, the judge can randomly select people and dismiss them outright.