Incitement to Disaffection Act 1934

The Incitement to Disaffection Act 1934 is an Act of the Parliament of the United Kingdom that made it an offence to endeavour to seduce a member of HM Forces from his "duty or allegiance to His Majesty", thus expanding the ambit of the law.

The previous relevant legislation was the Incitement to Mutiny Act 1797, which created the offence of endeavouring to seduce a member of HM Forces from his duty and allegiance. The 1797 Act, last significantly used against Tom Mann, 1912, and in the Campbell cases, 1924 and 1925, was not repealed by the 1934 Act, but effectively became defunct.