5 people died in the venues of LCSD with AED in half of this year. They suffered from SCA but no one was able to use the AED to revive them. LCSD’s venues have installed over 300 AEDs for people providing first-aid in the shortest period of time by using them. However, many staff who was on duty did not train to use the AED and waited for the emergency service. This would decrease the chance of the patient survival.