 These rules are interpreted in accordance with the European Convention on Human Rights article 11 which protects the freedom of association, which is itself inspired by the predecessors to TULRCA 1992 in the United Kingdom.Section 219 contains out the historical immunity of trade unions to support their ability to be involved in collective bargaining, that have existed since the Trade Disputes Act 1906.Section 219 states that a trade union is not liable to an employer or other party for economic loss which may be caused "in contemplation or furtherance of a trade dispute".