Work alone night time

Are you a police or a watchman? These are works that might need the help of a lone worker alarm system. These systems are made really clever and has been used for many years. I do believe that more should use these systems too. These alarms can be connected to a alarm central or to a certain person that, if the alarm is being triggered, will be noticed. Then the next step is to send some backup and that way see what the problem is, or just calling the person to see what has happened. Yes, this system is really clever and I do believe that more should use it for their daily working.