What is… the Rule of Law?
- Apex Experts

- Dec 17, 2025
- 5 min read
Few principles are more foundational to modern justice than the Rule of Law. It underpins every courtroom decision, every piece of legislation, and every professional duty within the legal system - including the medico-legal sphere.
But what does it actually mean? And why does it matter not only to judges and lawmakers, but also to clinicians, expert witnesses, and those working in the intersection between medicine and law?
In this blog, we explore what the Rule of Law is, how it developed, and why it remains vital to fairness, accountability, and professional practice.
Defining the Rule of Law
At its simplest, the Rule of Law means that everyone is subject to the law - no one is above it, and no one is beneath it. This includes individuals, governments, and public institutions. The idea is that justice is not arbitrary or based on personal power, but grounded in a system of clear, predictable, and fair rules.
The Rule of Law is not a single rule or statute; it’s a principle - a framework that defines how laws are created, applied, and enforced. It ensures that decisions are made according to established processes, that rights are protected, and that power is exercised responsibly.
Lord Bingham, one of the UK’s most respected judges, famously defined the Rule of Law as the principle that “all persons and authorities within the state, whether public or private, should be bound by and entitled to the benefit of laws publicly made, taking effect (generally) in the future, and publicly administered in the courts.”

The Origins of the Rule of Law
The roots of the Rule of Law stretch back centuries.
Magna Carta (1215): Often seen as its starting point, this charter limited the powers of the King and affirmed that even the monarch must obey the law.
Enlightenment thinkers like John Locke and Montesquieu developed the idea further, linking it to liberty, equality, and the separation of powers.
In the modern era, the Rule of Law is enshrined in the UK’s constitutional framework and reflected in international instruments such as the European Convention on Human Rights and the United Nations Charter.
It’s a principle that transcends politics and time: societies that respect it tend to be fairer, more stable, and more just.
The Core Principles of the Rule of Law
Although it can be expressed in many ways, most scholars and judges agree on several key components:
1. Legal Certainty
Laws must be clear, accessible, and predictable. People should know what behaviour is required or prohibited. In healthcare, this ensures that clinicians understand their professional duties, from consent to confidentiality.
2. Equality Before the Law
No one is above the law - not government officials, corporations, or professionals. Whether a patient or a practitioner, all are treated equally in the eyes of justice.
3. Accountability and Fair Process
Those who exercise power (including clinicians, employers, or regulators) must be accountable for their actions. Legal and disciplinary processes must be fair, transparent, and impartial.
4. Access to Justice
The Rule of Law means little if individuals cannot enforce their rights. Access to courts, legal aid, and fair hearings are vital components. This is particularly relevant in clinical negligence cases, where patients rely on the justice system to challenge failings in care.
5. Human Rights and Dignity
Modern interpretations of the Rule of Law are closely tied to the protection of fundamental rights. In healthcare, this principle resonates with values such as autonomy, informed consent, and the right to safe treatment.
Why the Rule of Law Matters in Healthcare
Healthcare operates within a legal framework that balances professional judgment, patient safety, and public accountability. The Rule of Law is what holds these elements together.
When clinicians or institutions deviate from established standards, for instance, by breaching consent law or ignoring safeguarding obligations, the Rule of Law provides the mechanism through which accountability is enforced.
For example:
Informed consent cases rely on the legal framework established by Montgomery v Lanarkshire Health Board (2015), which reasserted the patient’s right to make autonomous decisions.
Negligence law applies the tests of Bolam and Bolitho, ensuring that professional decisions are judged by recognised, logical standards rather than arbitrary opinions.
Public inquiries and coronial inquests depend on the Rule of Law to ensure transparency and justice for families affected by systemic failings.
In short, the Rule of Law transforms moral or professional obligations into legally enforceable ones - ensuring that fairness is not a matter of discretion, but of duty.
The Rule of Law in Medico-Legal Practice
For expert witnesses, solicitors, and healthcare professionals involved in litigation, understanding the Rule of Law is essential. It shapes how evidence is gathered, interpreted, and presented.
At Apex Experts, our panel of clinicians and medico-legal specialists operate with this principle at the heart of every report. Independence, transparency, and objectivity are not just best practice - they are legal expectations grounded in the Rule of Law.
Key areas where the Rule of Law directly applies to expert witness work include:
1. Impartiality
Experts owe their duty to the court, not to the instructing party. This reflects the Rule of Law’s emphasis on equality and fairness - ensuring that justice is informed by evidence, not advocacy.
2. Accountability
Expert reports must comply with the Civil Procedure Rules (CPR Part 35), which codify the expert’s responsibilities. Non-compliance undermines not only the case but the integrity of the process itself.
3. Transparency
Every opinion must be reasoned and supported by evidence. In medico-legal work, this means clear reference to clinical records, guidelines, and professional standards - a demonstration of law applied through fact.
Challenges to the Rule of Law
While the Rule of Law is an ideal, it is not immune to erosion. In healthcare and litigation, pressures such as underfunding, staff shortages, and administrative complexity can threaten fairness and access to justice.
For instance:
Patients unable to obtain legal aid may struggle to challenge negligent care.
Delays in coronial investigations can deny families timely closure.
Clinicians working under extreme workload pressures may inadvertently breach professional standards.
These realities highlight that the Rule of Law requires constant protection - through vigilance, transparency, and professional integrity.
The Rule of Law and Ethical Responsibility
Beyond legislation, the Rule of Law also embodies an ethical commitment. It asks professionals including nurses, doctors, and expert witnesses, to act not only within the law but in its spirit: with fairness, honesty, and respect for the rights of others.
For those in the medico-legal field, this means:
Upholding objectivity even under pressure from instructing parties.
Recognising when systemic issues contribute to individual failings.
Ensuring that every report, statement, and testimony supports the court’s ability to make fair, evidence-based decisions.
Final Thoughts
The Rule of Law is not an abstract legal doctrine - it’s the foundation of trust between society, professionals, and justice.
In healthcare, it safeguards patients. In litigation, it ensures equality of arms. And in expert witness practice, it demands independence, clarity, and integrity.
At Apex Experts, our work reflects these principles every day. We believe that justice depends not just on expertise, but on fairness - the very essence of the Rule of Law.
