Answer:
Trial by jury.
Explanation:
A trial by jury is a proceeding that is legally allowed and used in many court cases that requires the 'convict' to be tried for the crimes he/ she had committed. In this type of legal proceeding, the case is heard and judged by a group of unbiased people who comprise the "jury".
In the given scenario, the 19-year-old teen arrested for burglary was put on trial. And the group of people, the jury, after deliberations and hearing arguments from both sides of the defense and prosecution team, will make a decision that will decide the final decision in the trial. And in finding the person 'not guilty', the trial upholds the constitutional right of having a trial by jury.