Generally, a party requesting a jury trial must file a jury demand within 28 days of when the answer was filed. A case may be tried before a judge or before a jury.Do you have prior jury service? What type of case was it, and what was the result? What is a petit jury? A petit jury is a trial jury for both civil and criminal cases. Rule 2.508 - Jury Trial of Right (A) Right Preserved. In civil law suits, a jury trial is an option available to the parties, but there is a required fee for requesting a jury trial in a civil law suit. A jury trial is a matter of right in criminal cases. In civil law suits, a jury trial is an option available to the parties, but there is a required fee.