 The operative law is a patchwork of statutes and case law.The principal Acts are the Lands Clauses Consolidation Act 1845, the Land Compensation Act 1961, the Compulsory Purchase Act 1965, the Land Compensation Act 1973, the Acquisition of Land Act 1981, part IX of the Town and Country Planning Act 1990, the Planning and Compensation Act 1991, and the Planning and Compulsory Purchase Act 2004.In Scotland, eminent domain is known as compulsory purchase.