A statute is a written law enacted by a legislature and applied by courts and practitioners in day‑to‑day legal work. In the UK and Ireland, the term commonly refers to primary legislation passed by the UK Parliament, the Oireachtas, the Scottish Parliament, the Northern Ireland Assembly, or (historically) by predecessor legislatures.Statutes set out binding legal rules and powers in an authoritative text, often supplemented by secondary legislation (such as regulations or orders) made under statutory authority. They may create rights and obligations, confer powers on public bodies, establish offences and penalties, or codify and reform existing law.Interpretation of statutes is governed by well‑developed rules of statutory construction in case law, with courts giving effect to the enacted wording read in context and, where relevant, in light of purpose and legislative history. Although detailed interpretative doctrines vary slightly between England & Wales, Scotland, Northern Ireland and Ireland, the core concept of a statute as primary legislation is broadly consistent across these jurisdictions.