The Air Force Act 1955 (c.19) The Air Force Act 1955 (c.19) Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below: Sch. 2 para. 18 repealed by The Criminal Evidence (Northern Ireland) Order 1999 Sch. 3 2Paragraph 2 The Air Force Act 1955 (c.19)