Defining Law

Law is a fundamental aspect of human society, governing the behaviour of individuals, organisations, and governments. Despite its central role, the precise definition of law has been the subject of debate among scholars, jurists, and philosophers for centuries. Various schools of thought have sought to define law from different perspectives, encompassing everything from formal rules enforced by the state to broader principles of justice and morality. This article discusses the various dimensions of law, providing a comprehensive understanding of its definition and its role in society.

1. Law as a System of Rules
One of the most straightforward and widely accepted definitions of law is that it is a system of rules. These rules are established by authorities, typically governments, to regulate conduct and ensure order within society. According to this view, laws are formal norms that prescribe what individuals can and cannot do, and they are enforced through a system of courts and legal institutions.

This definition of law is rooted in legal positivism, which asserts that laws are created by human beings and are not necessarily connected to morality or ethics. Legal positivism emphasises that law is a body of rules issued by a recognised authority and enforced by a government. British legal philosopher John Austin famously described law as the command of the sovereign, reflecting the idea that law derives its authority from the state and its ability to impose penalties for non-compliance.

While this definition is practical and widely used, it has its limitations. It focuses primarily on law as a set of externally imposed rules, overlooking the broader purposes of law, such as promoting justice, protecting rights, and resolving conflicts. Additionally, it does not account for the fact that laws can exist outside formal legal systems, such as customary or religious laws that are not codified but are followed within specific communities.

2. Law and Morality
Another important aspect of defining law is its relationship with morality. Many legal theorists argue that law should not be seen merely as a system of rules but as a reflection of moral principles. According to natural law theory, laws derive their legitimacy from their alignment with universal moral values. This view suggests that unjust laws, those that violate fundamental principles of right and wrong, are not true laws and should not be followed.

Natural law theorists, such as Thomas Aquinas, have argued that human-made laws must be grounded in a higher moral order, whether that order is derived from nature, reason, or divine authority. For example, laws against murder or theft are consistent with the moral imperative to respect human life and property. In this view, the purpose of law is not just to maintain order but to promote justice and the common good.

However, the relationship between law and morality is complex. Legal positivists, such as H.L.A. Hart, have argued that law and morality are distinct. While laws may sometimes reflect moral values, the validity of a law does not depend on its moral content. According to this view, even unjust laws are still laws as long as they have been properly enacted by legitimate authorities.

This debate over whether law should be defined in terms of morality continues to shape discussions about the nature of law and its purpose. It raises important questions about the legitimacy of legal systems, particularly in cases where laws appear to be morally questionable or unjust.

3. Law as a Social Construct
Another approach to defining law views it as a social construct, a product of the society in which it exists. According to this perspective, law is not an objective or fixed set of rules but rather a dynamic institution that evolves in response to social, economic, and political forces. Legal realists and critical legal scholars argue that law is shaped by power relations and reflects the interests of those in authority.

For legal realists, law is not a matter of applying abstract rules to cases in a mechanical fashion. Instead, they emphasise that the law is influenced by the personal experiences and biases of judges, as well as broader societal factors. Legal realism suggests that the outcome of legal decisions is often unpredictable, as it depends on how judges interpret the facts and the law in the context of broader social issues.

Critical legal scholars take this idea further, arguing that law serves to reinforce social hierarchies and maintain the status quo. For example, they argue that legal systems often reflect and perpetuate inequalities based on class, race, gender, and other social divisions. In this view, law is not neutral or objective but is instead a tool for advancing the interests of the powerful.

This perspective challenges traditional definitions of law by highlighting its fluid and contested nature. It suggests that law cannot be understood solely as a system of rules or a reflection of moral principles but must be seen as a product of social forces that can be used to either challenge or reinforce existing power structures.

4. Law as a Mechanism for Justice
Another important dimension of defining law is its role in promoting justice. Law is often seen as a means of ensuring fairness, equality, and the protection of individual rights. Legal systems are designed to provide remedies for those who have been wronged, punish those who break the rules, and prevent harm to others.

This view of law is closely connected to the concept of the rule of law, which holds that laws should be applied equally to all individuals, regardless of their social status or wealth. The rule of law also emphasises that laws should be clear, consistent, and predictable so that individuals can understand and comply with them.

Law as a mechanism for justice is often associated with the principles of equity, where legal decisions are made not just based on strict adherence to rules but also with consideration for fairness and the specific circumstances of each case. Courts are often tasked with interpreting laws in ways that ensure just outcomes, particularly in cases where rigid application of the law might lead to unjust results.

However, the concept of justice in law is not without its challenges. Different legal systems and cultures may have varying definitions of what constitutes justice, and what is considered fair or equitable in one society may not be seen the same way in another. As a result, defining law as a tool for justice requires a broader consideration of cultural, historical, and social factors.

5. Law as an Instrument of Social Control
A significant aspect of law is its function as a tool for social control. Law regulates behaviour and maintains social order by establishing rules that individuals and organisations must follow. These rules govern a wide range of human activities, from criminal behaviour to economic transactions, ensuring that society functions smoothly and predictably.

Max Weber, a prominent sociologist, viewed law as a means of legitimising authority and controlling social behaviour. According to Weber, legal systems provide a framework through which states exercise their authority over individuals. By creating laws and enforcing them through police, courts, and other institutions, governments ensure compliance with societal norms and expectations.

This definition of law focuses on its role in maintaining stability and preventing chaos. Laws set out penalties for those who engage in harmful behaviour, such as theft or violence, thereby deterring individuals from engaging in such activities. In this sense, law functions as a coercive force, compelling individuals to adhere to societal norms.

However, law as an instrument of social control also raises important ethical questions. Critics argue that law can sometimes be used to oppress or marginalise certain groups, particularly when it reflects the interests of the powerful rather than the needs of society as a whole. As such, understanding law as a means of social control requires a critical examination of the relationship between law, power, and social justice.

The definition of law is complex and multifaceted, reflecting its diverse roles and purposes in society. Whether viewed as a system of rules, a reflection of morality, a social construct, a mechanism for justice, or an instrument of social control, law plays a central role in shaping human behaviour and maintaining order. Different legal theories offer unique perspectives on what law is and how it should function, revealing the dynamic and evolving nature of legal systems.

In conclusion, understanding the definition of law requires not only an examination of its formal structure but also a consideration of its broader social, moral, and political implications. As societies evolve, so too does the law, adapting to new challenges and reflecting the changing values and priorities of the communities it serves. In this sense, the definition of law is never static but is constantly shaped by the forces that influence human societies.
Back to blog

UOL Case Bank

Upon joining, you become a valuable UOL student and gain instant access to over 2,100 essential case summaries. UOL Case Bank is constantly expanding. Speed up your revision with us now.

Subscribe Now

Where are our students from?

Council of Europe
Crown Prosecution Service
Baker Mckenzie 
Yale University
University of Chicago
Columbia University
New York University
University of Michigan 
INSEAD
University of London
University College London (UCL)
London School of Economics (LSE)
King’s College London (KCL)
Royal Holloway, University of London 
Birkbeck, University of London
SOAS, University of London
University of Manchester
University of Zurich
University of York
Brandeis University
University of Exeter
University of Sheffield
Boston University
University of Washington
University of Leeds
University of Law
University of Kent
University of Hull
Queen’s University Belfast
Toronto Metropolitan University
Hong Kong University of Science and Technology
University of Buckingham
ESSEC Business School

  • Criminal Practice

    Diagrams and Charts

    Our carefully designed diagrams and charts will guide you through complex legal issues.

  • Criminal Law

    Clear and Succinct Definitions

    Key concepts are concisely defined to help you understand legal topics quickly.

  • Property Law

    Statutory Provisions

    Statutory provisions are provided side by side with legal concepts to help you swiftly locate the relevant legislation.

  • Public Law

    Case Summaries

    We have summarised important cases for you so that you don't need to read long and boring cases.

  • Evidence

    Rules and Exceptions

    Rules and exceptions are clearly listed so that you know when a rule applies and when it doesn't.

  • Company Law

    Terminology

    Legal terms and key concepts are explained at the beginning of each chapter to help you learn efficiently.

  • Case Law

    Case law is provided side by side with legal concepts so that you know how legal principles and precedents were established.

  • Law Exam Guide

    Law Essay Guide

    You will learn essential law exam skills and essay writing techniques that are not taught in class.

  • Law Exam Guide

    Problem Question Guide

    We will show you how to answer problem questions step by step to achieve first-class results.

  • Conflict of Laws

    Structured Explanations

    Complex legal concepts are broken down into concise and digestible bullet point explanations.

  • Legal System and Method

    Legal Research

    You will learn legal research techniques with our study guide and become a proficient legal researcher.

  • Jurisprudence and Legal Theory

    Exam-focused

    All essential concepts, principles, and case law are included so that you can answer exam questions quickly.