Тук ще намерите връзки към анализи на охрана и сигурност извършени в международен мащаб.
Security and investigation services statistics - NACE 2012
Paper 21 Voice and accountability in the security sector - BICC 2002
Study on business-related services - ECORSYS 2012
The Voluntary Principles on Security and Human Rights - Voluntary Principles February, 2015