Accident and emergency navigators
Evidence-rated crime-reduction intervention (EMMIE).
Effect on crime
some reduction
Evidence quality
moderate
Cost
low
What the evidence says
Accident and emergency (A&E) navigators work within hospitals to assist patients with violence-related injuries, aiming to prevent future violence involvement. Evidence suggests some reduction in violent crime and reoffending, though overall effects were not statistically significant due to variability in studies. A systematic review indicated that these interventions may effectively support victims through counseling and referrals, though the quality of evidence on economic costs and implementation remains moderate.
How it works
A&E navigators promote behavioral change by addressing psychosocial factors and enhancing motivation during a critical post-trauma moment. They provide support through various methods, including counseling and referrals to community services.
Implementation
Successful implementation may benefit from combining brief interventions with ongoing case management. However, empirical testing of these facilitating factors was not conducted.
Source: College of Policing Crime Reduction Toolkit (What Works Centre for Crime Reduction). Summarised 2026-07-14. BlueLineHub is independent and not affiliated with the College of Policing.