In the case of Eiseman Renyard and Others v United Kingdom (2019) Application no. 57884/17, the European Court of Human Rights has declined to disturb the decision of the Supreme Court in R (Hicks) v Comr Metropolitan Police[2017] UKSC 9; [2017] AC 256, concerning the arrest and detention of royal wedding protesters, for breach of the peace.
As stated in the blog post discussing the decision of the Supreme Court, the police arrested a number of individuals on 29th April 2011, which was the day of the royal wedding, took them into police custody and released them without charge once the pageant was over. The justification was that the arrests were said to be necessary to prevent an imminent breach of the peace – the violent disruption of the wedding. No-one was brought before a court as foreseen by Article 5(1)(c) of the Convention.