Human error is the most important cause of preventable adverse events during emergency room resuscitation. Presumably, errors occur unintentionally and as a result of situational misjudgment. As such errors have marked consequences on mortality and morbidity of severely injured patients, an extensive risk management is mandatory for the improvement of quality and safety. Appropriate methods to record errors in order to allow a correct root cause analysis according to well-established protocols is a basic prerequisite.