Failure mode and effect analysis (FMEA) is a common way to identify error risk. In this study, FMEA was used in a psychiatric hospital emergency department (ED) to identify potential failures. FMEA was completed by two groups, ED staff and non-ED staff, to determine if a multi-professional team could be used for the FMEA process. The groups’ ratings were very similar, indicating a multi-professional team can effectively complete an FMEA.