GoodSAM (volunteer first responders)#

Neither a watch scheme nor a village group, and the most important example on this site. GoodSAM is plugged straight into ambulance dispatch systems in the UK, Australia and elsewhere: when a cardiac arrest call comes in, the system alerts registered volunteers within a few hundred metres and asks if they can go. They accept or decline. The ambulance is on its way regardless.

It’s the exact shape of what Escudo does, running at national scale, with clinical outcomes attached.

Why it matters to us#

Cardiac arrest is the clearest possible test case, because the cost of delay is measurable — survival falls by roughly ten percent for every minute without CPR. If getting a nearby volunteer there first makes a difference, it shows up in the survival data.

It does. Ambulance Victoria studied more than 9,000 out-of-hospital cardiac arrests over five and a half years and found survival to hospital discharge around a third more likely when a GoodSAM responder arrived before the paramedics. UK ambulance services have been adopting it steadily, several of them during 2025.

That’s the strongest evidence in this entire section, and it isn’t evidence about crime at all. The mechanism that works is: alert the nearest willing person, now.

A yellow public-access defibrillator cabinet on a stone wall in a narrow village street. — The other half of the same idea: equipment on a village wall, and somebody nearby who knows it's there. Photo: shikari, Geograph, CC BY-SA 2.0

What we take#

The core pattern. Trigger → fan out to the nearest willing volunteers → they accept or decline → professionals come anyway.
Supplement, never replace. No GoodSAM alert has ever stopped an ambulance being sent. No Escudo alert stops 062 or 112.
Volunteering is opt-in and revocable. Nobody is on duty by default, and declining is a normal answer.
Minutes are the unit, not crime statistics.

What we leave#

Central dispatch. GoodSAM works because it’s wired into a control room. Escudo has no control room, so the alert goes to everyone at once and the village sorts out who goes. Why.
Clinical training as an entry requirement. GoodSAM responders are clinicians and trained first-aiders. A Red Escudo member needs to be a neighbour who’ll turn up — though a village that arranges first-aid training and a defibrillator has done something very worthwhile.
An app to install. Ours has to work on a phone the owner has never configured. How.