How secure are my documents if I choose to store offsite?

At RADS our premises are highly secure, we have 24 hour recorded CCTV, night security guards and a smoke and intruder alarm system which is in line with all european regulations. All entry points to the premises are highly secure with steel doors and roller shutters, visitors report to the main office and are only given acces to the storage areas with the proper identification. Only RADS managers can access locks to give access to the storage areas. In the event of an alarm activiation the system will notify RADS managers, our security firm and the police or fire brigade, the normal response time to an alarm activation is under 5 mins.