sedition

The speaking or writing of words that are likely to incite ordinary people to public disorder or insurrection. Sedition is a common-law offence (known as seditious libel if the words are written) if it is committed with the intention of (1) arousing hatred, contempt, or disaffection against the sovereign or her successors (but not the monarchy as such), the government of the UK, or either House of Parliament or the administration of justice; (2) encouraging any change of the law by unlawful means; or (3) raising discontent among Her Majesty’s subjects or promoting ill-will and hostility between different classes of subjects. There must be an intention to achieve these consequences by violence and disorder. An agreement to carry out an act to further any of these intentions is a criminal *conspiracy.