The Trade Disputes Act 1965 is an Act of Parliament of the United Kingdom, which supported closed shop practices in industrial relations. The principal effect was to reverse the legal position established by Rookes v Barnard in 1964, in which the threat of strike action from a union resulted in the sacking of a worker who had recently left that union. The House of Lords, acting as the highest court of appeal, held that the threat of strike action was unlawful intimidation. The closed shop was eroded by the Conservative government in the 1980s and eventually banned by the Employment Act 1990.