http://www.legislation.gov.uk/ukpga/2000/11/section/121/madeTerrorism Act 2000Civil and human rightsKing's Printer of Acts of Parliament2021-08-03 Part VIIIGeneralInterpretation 121 In this Act— “act” and “action” include omission, “article” includes substance and any other thing, “customs officer” means an officer commissioned by the Commissioners of Customs and Excise under section 6(3) of the Customs and Excise Management Act 1979, “dwelling” means a building or part of a building used as a dwelling, and a vehicle which is habitually stationary and which is used as a dwelling, “explosive” means— an article or substance manufactured for the purpose of producing a practical effect by explosion, materials for making an article or substance within paragraph (a), anything used or intended to be used for causing or assisting in causing an explosion, and a part of anything within paragraph (a) or (c), “firearm” includes an air gun or air pistol, “immigration officer” means a person appointed as an immigration officer under paragraph 1 of Schedule 2 to the Immigration Act 1971, “the Islands” means the Channel Islands and the Isle of Man, “organisation” includes any association or combination of persons, “premises” includes any place and in particular includes— a vehicle, an offshore installation within the meaning given in section 44 of the Petroleum Act 1998, and a tent or moveable structure, “property” includes property wherever situated and whether real or personal, heritable or moveable, and things in action and other intangible or incorporeal property, “public place” means a place to which members of the public have or are permitted to have access, whether or not for payment, “road” has the same meaning as in the Road Traffic Act 1988 (in relation to England and Wales), the Roads (Scotland) Act 1984 (in relation to Scotland) and the Road Traffic Regulation (Northern Ireland) Order 1997 (in relation to Northern Ireland), and includes part of a road, and “vehicle”, except in sections 48 to 52 and Schedule 7, includes an aircraft, hovercraft, train or vessel. 1979 c. 2. 1971 c. 77. 1998 c. 17. 1988 c. 52. 1984 c. 54. S.I. 1997/276 (N.I. 2).