A person is qualified to be a juror if that person is over age 18, a United States citizen, a resident of the county of service, able to communicate in English, and has not been convicted of a felony for which civil rights have not been restored.  Jurors are randomly selected from a jury source list made up of the list of registered voters, licensed drivers, and identicard holders in each county.  

Jury Service.
The court sets the length and number of jury terms within a 12-month period, subject to statutory requirements.  Jurors are summoned for a jury term, which is the time that a summoned juror must be available to report for jury service.  The term of "juror service" is the time the juror is required to be present at the court facility.  In counties with a jury source list that has at least 70,000 names, the jury term cannot exceed two weeks, and the term of juror service may not exceed one week except to complete a trial.  In counties with a jury source list that has fewer than 70,000 names, the jury term may not exceed one month and the term of juror service may not exceed two weeks except to complete a trial.

 
Statute instructs that the jury term and juror service should be set at as brief an interval as is practical given the size of the jury source list for the judicial district.  The optimal jury term is one week or less.  Optimal juror service is one day or one trial, whichever is longer.
 
Excusal from Jury Service.
A person may not be excused from jury service except upon a showing of undue hardship, extreme inconvenience, public necessity, or any reason deemed sufficient by the court for a period of time the court deems necessary.  A prospective juror excused from juror service may be assigned to another jury term.  When the jury source list has been fully summoned and additional jurors are needed, jurors who have already served may be summoned again for service.  A juror who has previously served may be excused if he or she served at least one week of juror service within the preceding 12 months.

A person who is 80 years of age or older may request to be excused from jury service if the person attests that the person is unable to serve due to health reasons, and the court must grant the request.  An attestation form must be developed by the court and may not include a requirement that a doctor's note be provided.