Posted By John Sproul Rob, I know of a mobile phone system whereby an individual's position can be monitored and protocols can be established for loss, or lack, of contact. If you require details, please e-mail me direct. John.

Posted By Robert Paterson Hi Robert The last company that I worked with installed a lone worker system where if the alarm tilted i.e if the person fell or collapsed the alarm give out a signal to the main control centre and rescue was activated. If this is the kind of thing you are talking about it was a system from a company called BT Blick. Email me direct and I will get the information for you in the next few days, Kind Regards Robert Paterson