Define administrative law and explain its need and significance.

Administrative law — the law of administration: the rules governing the administration's organisation, powers, duties-and-limits — and the citizen's protection against its excesses. Dicey's classic frame: "the law relating to the administration" — the modern definition's growth: the administrative process's law (the fourth branch's constitution). The nature: the public-law creature (the state's organs — not the private parties' relations); the judge-made-and-statutory mix; the control-law (the administration's checking) + the enable-law (the administration's empowering) — the double face. The need (the welfare state's reality): the administrative state's growth (the regulation, the services, the licensing — the modern state's breadth demands the modern control); the individual's protection (the power's potential abuse); the good- governance agenda (the accountability, the transparency, the efficiency). The significance: the citizen-and-state relation's daily law (the permit, the licence, the service, the tax — every interface governed).