That means that, if someone drops dead, there is a seven-out-of-10 chance that the person next to them will be able to start resuscitation and carry out defibrillation within one minute of the ambulance coming.Although we acknowledge that ambulance response times are improving as part of the investment in public services, we are saying that there is still a need for other methods of rapid resuscitation in places in which people are participating in very strenuous sport or in which, because of the volume of people present, a greater number of people are at risk in that locus.