Redmond Bate v DPP

Some Christian fundamentalists were allowed to preach in a place and a policeman, seeing the crowd becoming hostile and fearing a breach of the peace, asked them to stop. They refused and he arrested them for obstructing a policeman in the course of his duty. The divisional court said that the policeman could not compel a citizen to desist from lawful conduct and that ECHR article 10 includes speech that is offensive and provocative.