In the UK in 2013/14, 54% of violent incidents involving adults were alcohol related and many of these incidents occurred within context of the night-time economy. The Licensing Act 2003 aims to: target premises that may be selling alcohol irresponsibly; reduce crime, disorder and harm; and, improve public safety. The process of licensing, the application of conditions to licenses or the revoking of licenses relies on robust multi-agency working with multi-source intelligence. Since alcohol is responsible for 8% of all hospital admissions, Emergency Departments (EDs) can play a key role in contributing to licensing processes. The Trauma and Injury Intelligence Group (TIIG) are central to the intelligence gathering by local and regional EDs and the data sharing mechanisms which enable the data to be efficiently processed and presented to the appropriate local authorities. This TIIG themed report demonstrates the opportunity for real change in violence prevention based on intelligence gathering in Emergency Departments in Cheshire and Merseyside and the wider North West of England.