Laval un Partneri Ltd v Svenska Byggnadsarbetareförbundet (2007) C-341/05 is an EU law case, relevant to all labour law within the European Union, which held that there is a positive right to strike. However, it also held that the right to strike must be exercised proportionately and in particular this right was subject to justification where it could infringe the right to freedom to provide services under the Treaty on the Functioning of the European Union article 56.

Labour laws, labour code or employment laws are those that mediate the relationship between workers, employing entities, trade unions, and the government. Collective labour law relates to the tripartite relationship between employee, employer, and union.