PurposeYouth violence victimisation impacts on health, mental health and future risk trajectories. A London hospital emergency department (ED) outreach youth service provides a unique intervention opportunity to support adolescents involved in violence. The purpose of this paper is to describe the set‐up of the service.Design/methodology/approachYoung people (YP) targeted were aged 12‐18, from two London boroughs and attended ED with injuries from a violent incident. They were referred to Oasis youth workers for a mentoring/youth work intervention. Lifestyle and symptom scales were used to assess risk profile. Hospital staff questionnaires determined service awareness in the first six months, and interviews/focus group identified potential barriers to service uptake.FindingsBy 12 months, the service was operating smoothly. Of the first 505 YP attending ED, a third were referred, a third ineligible and a third non‐contactable/refused. Detailed analysis of the first 30 attending found most were male (87 per cent), equal White or Black ethnicity (40 per cent) with 20 per cent “Other” ethnicities, with only a third living with both biological parents. This was similar to the full population attending. Nearly half (49 per cent) had been assaulted, 30 per cent had injuries self‐generated through poor anger management, the remainder injured in fighting. Over half (57 per cent) had disorder, mostly behavioural, correlated with lifestyle risk scores. Barriers to service use/implementation included YP mistrust and fear of reprisals, problems with service visibility in the busy hospital environment and ineffective staff communication with YP, all countered during the running of the service. Gauging outcome at follow‐up is the second evaluation stage.Originality/valueThe youth violence project is an important initiative for intervention in youth violence.

Purpose Current government policy aims to tackle youth anti-social behaviour and its psychological and social impacts. Given an increased likelihood that young victims of crime are also likely to engage in aggressive or deviant behaviour and to have psychological and social difficulties, interventions are needed which access vulnerable youth with adverse lifestyles to increase well-being and reduce offending. The current project utilised a hospital emergency department (ED) as an appropriate location to identify and interact with youth victims of violent crime; to support key lifestyle risk and mental health difficulties; and build resilience. The purpose of this paper is to use a youth work paradigm, to target vulnerable youth in a health setting at a crisis point where intervention may have a higher chance of uptake. Design/methodology/approach The study applied a quasi-experimental, longitudinal design. Using the strengths and difficulties questionnaire and the “What Do You Think” component of the ASSET risk assessment, data were collected from 120 youth aged 12-20, at baseline with 66 youth who successfully completed the programme with assessments at baseline and follow-up, at an average of 14 weeks. Findings There was significant reduction in both psychological problems and lifestyle risk at follow-up. Research limitations/implications These findings support the government initiative to intervene in youth violence in healthcare settings. Challenges revolve around increasing participation and greater formalisation of the intervention. Originality/value The youth work led violence intervention in the ED is successfully tackling psychological problems and lifestyle risk following injury.