Montesquieu stated that
“When the legislative and executive powers are united in the same person, or in the same body of magistrates there can be no liberty; because apprehensions may arise, lest the same monarch or senate should enact tyrannical laws, to execute them in a tyrannical manner.
Again, there is no liberty if the judicial power be not separated from the legislative and executive. Were it joined with the legislative, the life and liberty of the subject would be exposed to arbitrary control; for the judge would be then the legislator. Were joined to the executive power, the judge might behave with violence and oppression”.
The separation of powers, sometimes vaguely used interchangeably with the ‘Trias politica’ principle is a model for the governance of a state. The dogma of separation of powers considers the idea that the governmental functions must be based on a tripartite division of legislature, executive and judiciary. The three organs should be separate, distinct and independent in its own sphere so that one does not intrude the territory of the other.
Three features of this doctrine.
- Each organ should have different persons in capacity, i.e., a person with a function in one organ should not be a part of another organ.
- One organ should not interfere in the functioning of any other organ of the government.
- One organ should not exercise a function of another organ (they should stick to their mandate only).