Two person access controls
https://en.wikipedia.org/wiki/Two-man_rule "The two-man rule, also known as the four-eyes principle" for admins, also called two-person access controls.
This is to prevent a single admin from disabling certain access controls. The first step would be to require two admins to disable the protect branch unprotect permission https://about.gitlab.com/2018/04/22/gitlab-10-7-released/#protected-branch-unprotect-permissions behind this.