The last few years have seen a surge in demand for mental health services, at a time when there continues to be a reduction in inpatient beds. Crisis intervention services offer a good alternative to an inpatient admission. The development of crisis services has been widespread, although ad hoc, it remains an area of major concern for service users. Recent initiatives, such as the Mental Health Crisis Care Concordant have been trying to standardise approaches in crisis care. A Cochrane systematic review of crisis intervention for people with severe mental illness has been in existence for many years (first published in 1998). This blog is on the latest update of this review (Murphy et al, 2015).