“Every minute delay of rescue, the patient with heart attack has 10% less chance to survive” the Clinical Assistant Professor, Department of Emergency Medicine, HKU claimed, “ one of the reason why people do not attempt to save the SCA because of liability concerns. If no one apply CPR for the SCA patients before the arrival of ambulance, patients survive rate would become very low.” He hopes the disclamation for the first aider provided by the Government would alleviate the liability concern and improve the willingness of bystander to rescue SCA victims.