Introduction to Legal Systems and Norms

TL;DR

Legal systems are structured ways societies govern themselves through rules. These rules, called norms, tell us what we can and can't do. Understanding how norms are created and organized is key to understanding public law.

1. The Mental Model

Think of a legal system as a set of instructions for a country. These instructions tell everyone, including the government, how to act. Laws are just individual instructions within that set.

2. The Core Material

What is a Legal System?

A legal system is the entire framework of laws, institutions (like courts, police, parliament), and procedures that a state uses to regulate the conduct of its members. It provides order, resolves disputes, and protects rights. There isn't just one type; different countries have different systems, often influenced by history and culture.

Legal Norms: The Building Blocks

A legal norm (or simply "norm" in this context) is a rule of conduct backed by the state's power. It's not just a suggestion; it carries consequences if violated.

Characteristics of Legal Norms:

• Generality: They apply to anyone in a specific situation, not just one person. For example, "all drivers must stop at a red light."
• Abstractness: They don't refer to a single, specific action, but a type of action. "Don't steal" covers any act of stealing, not just stealing one particular item at one particular time.
• Coercibility: The state can enforce them, using force if necessary (e.g., fines, imprisonment). This is what distinguishes legal norms from moral or social norms.
• Exteriority: They regulate outward conduct, not just inner thoughts or beliefs. A legal system is generally concerned with what you do, not what you think.

Sources of Law

Where do these norms come from? The main sources of law tell us how norms are created and where to find them.

• Legislation: Laws passed by a legislative body (like Parliament). This is the most common source in many systems. Think of acts, statutes, or codes.
• Custom: Practices that have been followed consistently over time and are accepted as legally binding within a community. Less common in modern public law, but still relevant in some areas.
• Jurisprudence (Case Law): Decisions made by courts, especially higher courts. In common law systems (like the UK or US), these decisions can create binding precedents. In civil law systems (like Italy), court decisions interpret law but generally don't create new binding rules for future cases in the same way.
• Doctrine: The opinions and writings of legal scholars. While not legally binding, they influence how legislators and judges think about and interpret the law.
• Constitutions: The supreme law of a land, outlining the basic principles of government, rights, and the structure of the legal system itself. All other laws must conform to the Constitution.

Hierarchy of Norms (Kelsen's Pyramid)

Legal systems aren't just a jumble of rules. They're organized. The hierarchy of norms means that some norms are "higher" than others. A lower norm cannot contradict a higher norm.

1. Constitutional Norms: At the top. They establish the basic framework of the state and fundamental rights.
2. Primary Norms (Legislation): Laws passed by Parliament, decrees, etc. They must respect the Constitution.
3. Secondary Norms (Regulations): Rules issued by the executive branch (government ministries) to implement primary laws. They must respect primary laws and the Constitution.

If a norm at a lower level contradicts a higher-level norm, it's generally considered invalid. This ensures consistency and the supremacy of fundamental principles.

3. Worked Example

Imagine you're trying to build a house (the legal system).

• The Constitution is like the building's blueprints: it sets the overall design, foundation, and main structural rules (e.g., where the main walls go, basic room count). You can't put a swimming pool where the plans say the kitchen should be.
• Primary legislation (parliamentary laws) are like specific building codes: they detail how those main structures must be built, like minimum wall thickness or electrical wiring standards. These codes must always follow the main blueprint.
• Secondary legislation (regulations) are like the detailed instructions from a specialist contractor: they explain how to meet the building codes, like the specific type of insulation or the exact sequence for laying bricks. They must comply with both the building codes and the blueprint.

If a contractor tries to install plumbing that doesn't meet the building code, that work is invalid because it violates a higher rule.

4. Key Takeaways

• Legal systems provide structure and order to society through a framework of rules and institutions.
• Legal norms are general, abstract, coercible rules of conduct enforced by the state.
• Laws originate from various sources including legislation, custom, court decisions, and the Constitution.
• Legal norms are organized in a hierarchy, with constitutional norms at the top.
• A lower-level norm is invalid if it contradicts a higher-level norm.
• Understanding the sources and hierarchy of norms helps interpret and apply legal rules.
• Public law primarily deals with the organization and functioning of the state and its relationship with individuals.

Common Mistakes to Avoid:
- Don't confuse legal norms with moral or social norms; only legal norms are state-enforced.
- Don't assume all laws are equal; remember the hierarchy of norms.
- Don't think legal systems are static; they evolve over time.
- Don't overlook the importance of the Constitution as the ultimate source of authority.

5. Now Try It

Think about a common rule you encounter every day, like "driving on the right side of the road" or "don't litter." Identify if it's a legal norm by checking its characteristics (generality, abstractness, coercibility, exteriority). Then, consider what its main source of law likely is (legislation, custom, etc.) and where it would fit in the hierarchy of norms in your country.

What success looks like: You can confidently (and correctly!) identify the characteristics of the norm and describe its likely source and position in the hierarchy, explaining why it fits there.