Which of the following is NOT a principle of fundamental justice?

The principle of fundamental justice is rooted in the protection of individual rights within legal proceedings. Among the provided options, the idea of "the right to a speedy trial" is more of a procedural safeguard than a core principle of fundamental justice in legal contexts. While many legal systems do emphasize the importance of timely trials to ensure fairness and prevent prolonged detention, this specific right is not universally recognized as a fundamental principle on the same level as the others listed.

Innocent until proven guilty reflects a foundational concept that underpins the legal system, ensuring that the burden of proof lies with the prosecution. The right to fully answer and defend against any charges is essential for ensuring fairness, allowing individuals the opportunity to respond to accusations. Likewise, the right to be heard by an impartial tribunal is critical for maintaining a fair judicial process, ensuring that judgments are made without bias or prejudice. These principles protect the rights of individuals within the justice system and are core to the idea of justice itself.