that branch of the public law of a nation of state which treats of the organization, powers and frame of government, the distribution of political and governmental authorities and functions, the fundamental principles which are to regulate the relations of government and citizen, and which prescribes generally the plan and method according to which the public affairs of the nation or state are to be administered, õiguse haru, mille normidega määratakse riigikorraldus, parlamendi, riigipea, valitsuse ja sageli ka mõne muu riigiorgani (nt kohtute ja ombudsmani) tegevuse ning isiku õigusliku seisundi alused