Serenity Integrated Mentoring (SIM) is an innovative approach, transforming the approach to caring for highly complex patients by bringing together the police and community mental health services. Its purpose is to better support “high intensity users” of Section 136 of the Mental Health Act (MHA). SIM develops a personalised package of clinical care and boundary setting with each service user, focussing on the complex factors driving their crisis and providing opportunities to break this cycle.


In April 2018, the Academic Health Science Networks (AHSNs) selected SIM as of one of seven programmes for national adoption and spread across the AHSN Network during 2018-2020. The Health Innovation Network (HIN) began working to implement SIM across south London, as well as leading pan-London collaborations, e.g. with the Metropolitan Police and London ambulance service.

We brought together three south London Secondary Mental Health Trusts, The South London and Maudsley NHS Foundation Trust, Oxleas NHS Foundation Trust and South West London and St George’s Mental Health NHS Trust, the Metropolitan Police, London Ambulance Service, A&E, CCG commissioners and the NHS Innovation Accelerator fellow Paul Jennings to implement Serenity Integrated Mentoring (SIM) and the High Intensity Network in South London. We have convened and supported regular meetings, providing a valued opportunity to update on progress and discuss any issues and challenges with implementation impacting on the programme as a whole.


areas adopted SIM


Patients benefited from SIM in 2018-19


For more information and to download the evaluation report on SIM visit: