19.—(1) If and whenever the Government are of opinion that any particular organisation is an unlawful organisation, it shall be lawful for the Government by order (in this Act referred to as a suppression order) to declare that such organisation is an unlawful organisation and ought, in the public interest, to be suppressed.

(2) The Government may by order, whenever they so think proper, amend or revoke a suppression order.

(3) Every suppression order shall be published in the Iris Oifigiúil as soon as conveniently may be after the making thereof

(4) A suppression order shall be conclusive evidence for an purposes other than an application for a declaration of legality that the organisation to which it relates is an unlawful organisation within the meaning of this Act.