Concept:
- Sharing power among organs works only if two conditions are met, that the functions are separated and that each organ can restrain the others.
- Taking the two conditions in turn makes the arrangement clear.
Step 1: The first condition, separate functions.
The legislature makes the laws, the executive carries them out, and the judiciary interprets them and settles disputes. Three different bodies, three different tasks, none of them placed above another.
The source calls this a horizontal distribution of power.
Step 2: Why separation alone is not enough.
If each organ simply did its own work without any restraint, one of them could still stretch its authority unchecked. Separation has to be backed by a power to intervene.
Step 3: The second condition, mutual restraint.
Ministers and officials exercise real power but remain responsible to Parliament or the State Assemblies. Judges, though appointed by the executive, can check the functioning of the executive and examine the laws made by the legislature.
Each organ can therefore call the others to account.
Step 4: The result of both conditions together.
No organ is able to exercise unlimited power, and a balance of power is maintained among the institutions. The source names this arrangement the system of checks and balances.
Final Answer: The legislature, the executive and the judiciary hold separate functions at the same level, and each can restrain the other two, the executive being answerable to the legislature and both being subject to review by the courts. That combination is what keeps power balanced.