Read the scenario.

A jury rules that a defendant is not guilty of robbing a bank. This means the defendant is free to leave and can be released. A few days later, a detective finds video evidence that could prove that the defendant actually did commit the crime.

What prevents the court system from moving forward with this evidence?

the Constitution’s protections against unlawful searches
the Constitution’s protections against double jeopardy
the Constitution’s guarantee of a speedy trial
the Constitution’s guarantee of reasonable bail