You are describing a basic social engineering tactic. Never allow anyone access to your rear areas even if they are dressed as law enforcement if you don’t know them and have not verified their credentials. Instead staff should be instructed to have any unknown person unknown who seeks access to nonpublic areas to wait in the lobby until they have been properly vetted. The reason we assign them to your lobby is that they are always on camera.
Learn more about Barry’s webinar Deception for Dollars: Social engineering your staff and call center.