This book presents a classic legal study of banning organisations in Dutch law. One of the main research questions is when, according to our law, an organisation is right for a ban. Must the organisation commit criminal offences, or are there other starting points for banning it? Another key question is what kind of organisations can be banned. Are, for example, political parties and denominations excluded, given the special function of these organisations in our society? Other important questions are how the procedure works, which body is authorised to ban and how legal protection against a ban is designed. In answering these questions, the author focuses on the fundamental question of the extent to which the regulation complies with the requirements arising from the freedom of association enshrined in our Constitution and treaties binding under international law. By no means all regulations meet these requirements. With a comparative law analysis of German and French law, the author makes recommendations to improve our prohibition regime on these issues