Capital Guarding useless

Our office / workshop is located in The Palisades, Jet Park. On the 6th of January 2 suspicious men were walking around in the complex. The one man walked into the workshop snooping around. After seeing him we asked him what they were looking for and requested then to leave which provoked a verbal argument. Capital Guarding never signed the men into the premises. They just opened the gate for them. There are no security cameras looking onto the gates. There are no book in the security booth for sign-in purposes. If such a thing happens while us field service personnel is out of office, then the admin ladies can be ***** or killed or the workshop or stores burgled or even vehicles ******.