A defibrillating system includes a processor coupled to a memory. The processor and the memory are configured to identify a treatment event associated with treatment of a victim with the defibrillating system, and transmit a representation of a portion of an ECG signal associated with the identified treatment event. In some cases, the processor and the memory are configured to identify the portion of the ECG signal associated with the identified treatment event. In some cases, the portion of the ECG signal is of a predetermined length of time having a start time and an end time based on a time associated with the identified treatment event.
