Which of the following is NOT considered a source of law?

The selection of presidential opinions as the option that is not considered a source of law is based on the understanding of what constitutes legitimate sources of law within a legal framework.

Sources of law typically include:

1. Administrative law, which consists of rules and regulations created by governmental agencies.
2. Judge-made law, often referred to as case law or common law, which arises from judicial decisions in court cases.
3. Statutory law, which is comprised of laws enacted by legislative bodies.
4. Judicial interpretation, which involves courts interpreting the meaning of statutes and regulations, thereby creating legal standards.

Presidential opinions, however, do not hold the same status as these sources. While presidential opinions might reflect the views or political positions of the executive branch, they do not create binding legal authority like the aforementioned sources. Therefore, they do not have the same legal weight or foundational role in the creation of law as administrative, judge-made, statutory law, or judicial interpretations do.

This distinction is crucial in understanding how legal systems function and the hierarchy of norms that govern society.