Final answer:
A jury trial is available in both Circuit Court and District Court. Circuit Courts at the state level and District Courts at the federal level handle serious criminal and civil cases, often with the involvement of a jury as stated in the Seventh Amendment.
Step-by-step explanation:
In which trial court is a jury trial available? The answer is the Circuit Court, although jury trials are also available in District Courts for federal cases. Traffic court and small claims court typically do not involve jury trials, as they handle specific civil matters that are usually decided by a judge. However, Circuit Courts and District Courts are the traditional venues where jury trials are conducted for both criminal and civil cases. According to the Seventh Amendment, in suits at common law in federal courts, the right of trial by jury is preserved where the value in controversy exceeds twenty dollars. State courts, including Michigan's Circuit Court, hear significant criminal cases and civil cases above a certain monetary threshold, and typically involve a jury.