Being the nearest human is only half of it. The other half is knowing what to do in the first four minutes. Here's where to learn it, and the plain facts worth carrying now.
Not a substitute for a course — a scaffold you can hold in your head until you take one.
Make sure it's safe to approach. Then check if the person responds — talk to them, squeeze a shoulder. No response changes everything that follows.
Call 000 (or 112 from a mobile) and hold the emergency button. Put the phone on speaker so your hands stay free and the call-taker can guide you.
Tilt the head back gently, look and listen for normal breathing for up to ten seconds. Not breathing normally is the trigger to start CPR.
Push hard and fast in the centre of the chest — about two per second. Chest compressions keep blood moving to the brain until help or a defibrillator arrives.
If one is nearby, switch it on and follow the spoken prompts. They're built for untrained hands and will not shock a heart that doesn't need it.
Don't stop until the person recovers, a professional takes over, or you physically can't continue. Swapping with another responder every couple of minutes helps.
Guidance varies by situation and by country. Take an accredited course and always follow the instructions of the 000 call-taker on the day.
For a cardiac arrest, the chance of survival falls with every minute that passes before CPR begins. Early compressions from a bystander — before any ambulance arrives — are among the strongest predictors of who lives.
This is the exact window the nearest human is built to fill: not to replace the paramedics, but to keep blood and oxygen moving in the minutes before they can possibly get there.
General figures consistent with Australian Resuscitation Council / Heart Foundation public CPR guidance. Learn current technique from an accredited provider — see the directory.
The idea of alerting a nearby trained person is not new — it already runs, quietly, alongside several ambulance services. These are the models the button learns from.
Most of the English-speaking world treats helping a stranger as a kindness. France treats it as a duty.
French law recognises non-assistance à personne en danger — the offence of failing to assist a person in danger. Broadly, if you can help someone in peril without serious risk to yourself or others, you are expected to; refusing can carry criminal penalties. It's the sharpest legal expression of a simple moral idea: we owe something to the people around us.
Many other places protect helpers from the other direction, with "Good Samaritan" laws that shield a person who steps in and acts in good faith from being sued if things go wrong. Together the two ideas make room for ordinary people to help: one says you should, the other says you won't be punished for trying.
A duty you can't act on isn't much of a duty. The emergency button turns "someone should help" into "the nearest verified human just did."
General summary for context, not legal advice. Good-Samaritan protections and duty-to-rescue rules differ by jurisdiction — check the law where you live.
Find an accredited course near you, then stay in the loop as the responder network grows.