A more thorough explanation:

A trial de novo is a new trial that takes place as if there had been no previous trial. This means that both questions of fact and issues of law are determined again.

A trial de novo is often used to challenge awards found in arbitration. While arbitration is a way to resolve smaller cases quickly, it is important to allow an unsuccessful party to demand a trial de novo because of the constitutional right to a jury trial.

To demand a trial de novo, there are certain procedural requirements that must be followed. For example, in Washington, a party must request a trial de novo within 20 days after the arbitration award is filed. The time limit to demand a trial de novo after an arbitration award has been filed also varies by jurisdiction.

It is important to note that a trial de novo can only be held on the basis of an arbitration award. If a settlement is reached, then there is no right to a trial de novo.

John and Jane have a dispute over a car accident. They agree to go to arbitration to resolve the issue. The arbitrator awards Jane $5,000. John is unhappy with the decision and decides to demand a trial de novo.

In the trial de novo, the case is heard again as if there had been no previous trial. The judge and jury will make a new decision on the case.