Currently permanent deletion is limited to SiteAdmins. To delegate this task to other users, there should be a button at the guild setting (e.g. "Admin can permanently delete cases") which allows the User with Admin permissions to permanent delete cases.
As some guilds might not want this feature, the permission should not be hardcoded to the admin role and only an optional checkbox to activate this.
Currently permanent deletion is limited to SiteAdmins. To delegate this task to other users, there should be a button at the guild setting (e.g. "Admin can permanently delete cases") which allows the User with Admin permissions to permanent delete cases.
As some guilds might not want this feature, the permission should not be hardcoded to the admin role and only an optional checkbox to activate this.