Which concept ensures that no one is above the law?

The concept that ensures no one is above the law is the rule of law. This principle asserts that all individuals and institutions, including the government itself, are accountable to the law, which is fairly applied and enforced. This means that laws govern the land, rather than arbitrary decisions made by officials, thereby providing a framework for justice and equality.

The rule of law is essential for maintaining a just society, as it helps to prevent abuses of power and protects the rights of individuals. It creates a legal structure that applies equally to everyone, ensuring that all citizens, regardless of their status or position, must comply with the law. This foundational principle is vital for the functioning of democratic societies and their legal systems.

Other concepts like separation of powers, judicial review, and popular sovereignty play important roles in government structure and democratic principles, but they do not directly encapsulate the idea that everyone, including government officials, is subject to the law in the same way that the rule of law does.