checks and balances and separation of powers make sure that none of the branches (judicial, executive, and legislative) become stronger than the other. meaning, that it limits the power of the government by making sure that no branch becomes the most in control :D
Separation of powers, therefore, refers to the division of government responsibilities into distinct branches to limit any one branch from exercising the core functions of another. The intent is to prevent the concentration of power and provide for checks and balances.
