341_98 personal_scope 98. On the other hand, where demonstrators engage in acts of violence, interferences with the right to freedom of assembly are in principle justified for the prevention of disorder or crime and for the protection of the rights and freedoms of others (see Giuliani and Gaggio, cited above, § 251). The guarantees of Article 11 of the Convention do not apply to assemblies where the organisers and participants have violent intentions, incite to violence or otherwise deny the foundations of a “democratic society” (see Stankov and the United Macedonian Organisation Ilinden v. Bulgaria, 48 FRUMKIN v. RUSSIA JUDGMENT nos. 29221/95 and 29225/95, § 77, ECHR 2001-IX; The United Macedonian Organisation Ilinden and Ivanov v. Bulgaria, no. 44079/98, § 99, 20 October 2005; Sergey Kuznetsov v. Russia, no. 10877/04, § 45, 23 October 2008; Alekseyev v. Russia, nos. 4916/07 and 2 others, § 80, 21 October 2010; Fáber, cited above, § 37; and Gün and Others, cited above, § 70). The burden of proving the violent intentions of the organisers of a demonstration lies with the authorities (see Christian Democratic People’s Party v. Moldova (no. 2), no. 25196/04, § 23, 2 February 2010).