The European Court of Human Rights has rejected an argument that the ban on secondary action ("sympathy strikes") breached the right to freedom of association under Article 11 of the European Convention of Human Rights. While the ban interferes with Article 11 rights, it served the legitimate purpose of protecting the rights and freedom of others, and was proportionate. The Court noted that, in regulating "secondary" aspects of trade union activity in the public interest, member states have a wide margin of appreciation to regulate the freedom of trade unions. Democratically elected parliaments were in a better position to appreciate what measures should be taken to decide what is in the public interest on social or economic grounds. The Court should respect the legislature's decisions unless they were manifestly unreasonable.