BackgroundCrisis resolution teams (CRTs) are being introduced throughout England, but their evidence base is limited.AimsTo compare outcomes of crises before and after introduction of a CRT.MethodA new methodology was developed for identification and operational definition of crises. A quasi-experimental design was used to compare cohorts presenting just before and just after a CRT was established.ResultsFollowing introduction of the CRT, the admission rate in the 6 weeks after a crisis fell from 71% to 49% (OR 0.38, 95% CI 0.21–0.70). A difference of 5.6 points (95% CI 2.0–8.3) on mean Client Satisfaction Questionnaire (CSQ–8) score favoured the CRT. These findings remained significant after adjustment for baseline differences. No clear difference emerged in involuntary hospitalisations, symptoms, social functioning or quality of life.ConclusionsCRTs may prevent some admissions and patients prefer them, although other outcomes appear unchanged in the short term.