In reply to Big Steve:
If your grandad goes missing from home (not in mountainous terrain, just normal areas - woods, farms, outskirts of towns wouldn't you want trained, skilled and experienced people out there looking for him? And these people volunteer, what is the problem?
They're also part of the Local Resilience Forum no doubt, set up to help in any and all emergencies.
There's only one joke, and you're it (the OP not Redestter!)