If any alien attempts or does any act calculated or likely to cause sedition or disaffection amongst any of His Majesty’s Forces or the forces of His Majesty’s allies, or amongst the civilian population, he shall be liable on conviction on indictment to penal servitude for a term not exceeding ten years, or on summary conviction to imprisonment for a term not exceeding three months.

If any alien promotes or attempts to promote industrial unrest in any industry in which he has not been bona fide engaged for at least two years immediately preceding in the United Kingdom, he shall be liable on summary conviction to imprisonment for a term not exceeding three months.