The authorisation procedure of private security operations in the United Kingdom and the operating structure of private security management in Hungary. Academic Journal of Internal Affairs, [S. l.], v. 69, n. 3, p. 487–503, 2021. DOI: 10.38146/BSZ.2021.3.8. Disponível em: http://belugyiszemlejournal.pitservice.hu/index.php/belugyiszemle/article/view/790. Acesso em: 1 mar. 2026.