In order to pass the test and get a certificate, you will need to have deep security knowledge on the field. Basically, if you finish the course provided with Cours de sécurité avancé sur le terrain, you will be able to get your certificate. I recommend you start with BSITF (Basic Security In The Field) and then continue with ASITF (Advanced Security In The Field). You can find them both on the official web page of United Nations. If you have problems, use [email protected] email address to get in touch with the support team.
