Vulnerability and violent crime programme

Evaluation of Interventions Phase 1


Progress following Call for Practice
We have now been in touch with everyone who submitted an intervention via the call for practice. Of the 138 submissions we received, around 30 were shortlisted for further consideration and discussion at a meeting of National Policing Leads. The strongest submissions were then placed on a final shortlist for the Vulnerability and Violent Crime Programme Board, who selected the final ten interventions taken forward for independent evaluation.

Following a competitive tendering process, two suppliers were selected to evaluate the selected interventions. Phase 1 completed on 29/03/2019, and looked at the feasibility and design of evaluation activity to be delivered in Phase 2, which runs from 08/04/2019 until 31/03/2020. At the end of Phase 1, evaluation activity for two of the ten interventions was stopped as further work was not considered to be feasible. Phase 2 will deliver process and impact evaluations of the eight remaining selected interventions to establish the following:

  • How effective the process to deliver the intervention is?
  • The environment in which it does or could work?
  • Implementation requirements?
  • Cost benefit?
  • Impact on crime?
  • Potential for scalability?
  • Long term measures in order to fully understand impact?

The interventions being evaluated in Phase 2 of the programme are as follows: The National Centre for Social Research (NatCen) are evaluating interventions 1-3, and the University of Birmingham are evaluating interventions 4-8.



​Intervention name
DIVERT
​Force​Metropolitan Police Service
​Area of focus
​Gangs and youth violence

DIVERT uses a trauma informed approach to diverting young people away from crime; putting strategies in place to break a cycle of offending. Custody Intervention Coaches (CICs) are trained and embedded within this police force’s custody suites to approach suitable 18 to 25 year old detainees and support them in seeking employment and education opportunities.​ ​

You can read a full summary of this project on the Policing and Crime Reduction Research Map.


Intervention name
Operation Divan / Operation Met Divan
Force​North Yorkshire Police; Metropolitan Police Service
Area of focus
Gangs and youth violence

​Operation Divan / Operation Met Divan aims to reduce the number of young people carrying weapons, and raise awareness of the consequences of weapon carrying. Police work with partners to support those aged under 18 identified as being at risk of weapon carrying and prevent future escalation. ​

You can read a full summary of this project on the Policing and Crime Reduction Research Map.


Intervention name
​Community Initiative to Reduce Violence (CIRV)
Force​Northamptonshire Police
​Area of focus
​Gangs and youth violence

​CIRV adopts a holistic approach to violence and gives gang members a choice to either stop their criminal behaviour, or face the consequences. Those who make the decision to stop are supported by the community, for example by life coaches, employment advisors, youth workers and the prevention and diversion service (PADs). In contrast, clear signals and lawful disruptive tactics are used to discourage individuals who are intent on continuing their gang violence. ​

You can read a full summary of this project on the Policing and Crime Reduction Research Map.


Intervention name
Think Family Early Intervention (TFEI) scheme
​Force​Avon and Somerset
Focus​Vulnerability (early intervention)

The TFEI scheme is a force response to the Troubled Families programme and employs a multi-agency approach to provide holistic support for families. The intervention involves PCSOs working with families to understand their key difficulties and identifying what can be done to support them. The focus is on a preventative approach and therefore aims to target low level problems before they become severe and high risk.​ ​

You can read a full summary of this project on the Policing and Crime Reduction Research Map.


Intervention name
Adverse Childhood Experiences (ACEs) and Trusted Adult Workers (TAWs)
​Force​Hampshire Constabulary
​Area of focus
​Vulnerability (early intervention)

​The intervention focuses on young people who have experienced ACEs and who may need support to deal with the trauma of those ACEs. The aim is to reduce the risk of future offending, tackle health problems and wider social issues, and ultimately support young people to enjoy a happy, healthy, crime-free life. Trusted Adult Workers (TAWs), funded by the OPCC, but working within Local Authorities, will be recruited to work with local children and adult safeguarding boards and community safety partnerships to deliver the intervention. Awareness training will also be given to staff from a range of partner agencies, to facilitate better identification and referral of ACEs exposed individuals to TAWs.  

You can read a full summary of this project on the Policing and Crime Reduction Research Map.


Intervention name
Joint approach to neglect
ForceHampshire Constabulary​
Area of focus
​Vulnerable children (child protection)

The intervention has been developed to avoid repeated child neglect and common assault offences against children working jointly with children services and CPS. The aim is to undertake ‘early intervention’ activity to prevent individuals reaching a crisis point. The intervention delivers a joint visit by officers and Child Services. Robust messaging is provided to families, and detailed behaviour contracts are developed which aim to improve the level of care given to children and raise awareness about the consequences of failing to adhere to the contract.​ ​

You can read a full summary of this project on the Policing and Crime Reduction Research Map.


Intervention name

Spousal Assault Risk Assessment (SARA v3)/ Stalking Assessment and Management tool(SAM)

Force​Cumbria Police; Lancashire Constabulary; West Midlands Police
Area of focus
​Risk assessment and management

Endorsed by the NPCC leads for MOSOVO and Domestic Abuse, a three-force pilot commenced in November 2018 looking at the application of police risk assessment and management tools for serial and repeat perpetrators of domestic abuse and stalking. The tools being trialled are SARA V3, which is the latest version of the risk assessment and management tool used by the NPS for domestic abuse cases; and the Stalking Assessment and Management tool (SAM), used for managing stalking cases.​ ​

You can read a full summary of this project on the Policing and Crime Reduction Research Map.


Intervention name
High Harm Perpetrator Unit (HHPU)
Force​Surrey Police
Area of focus
​Risk assessment and management

The Surrey HHPU uses an algorithm and referral process to support professional judgement and provide a unique approach to proactively identify high harm perpetrators who may or may not be currently managed. Through identification and bespoke offender targeting/rehabilitating; it aims to directly reduce and prevent the harm they cause to the community and in particular vulnerable victims and increase capacity by bringing together IOM and MAPPA resources.​ ​

You can read a full summary of this project on the Policing and Crime Reduction Research Map.


We are keen to hear about other work taking place across the service to enable the collation and sharing of new and emerging practice between forces. If you have any further practice examples to share in relation to vulnerability and violent crime in your force area please contact us vulnerabilityprogramme@college.pnn.police.uk or complete the intervention submission form at the bottom of this page.

Additional vulnerability and violent crime projects

Across the programme there are several other projects and activities taking place that will contribute to the overall evidence base for vulnerability and violent crime. Many of these projects focus on direct engagement with forces and partners in order to obtain an understanding of current practice, identification of gaps and exploration of opportunities for sharing knowledge and learning.You can read about the additional vulnerability and violent crime projects here.


 Vulnerability and violent crime programme: Previous updates

Background: National programme to develop the evidence base on vulnerability and violent crime

The College, in partnership with the National Police Chiefs Council (NPCC), has been awarded a grant through the Home Office Police Transformation Fund to undertake a programme of work to use and develop the evidence base on vulnerability and violent crime. Areas of interest for the programme include knife crime, gangs, county lines, criminal exploitation of young people, and child sexual abuse/ exploitation. The programme will have a particular focus on children and young people and is funded until March 2020.

The Vulnerability Knowledge and Practice Programme (VKPP), hosted by the NPCC, has been created and is working with force violence and public protection (VPP) leads to identify current interventions and approaches to vulnerability and violent crime across forces in England and Wales. A minimum of ten of the most promising interventions identified by the VKPP and key stakeholders will then be tested through independent evaluations to build the evidence base around what works to tackle vulnerability and violent crime. The Knowledge Research and Practice Unit (KRP) at the College will manage the specification and procurement of these evaluations.


Sharing current practice
The programme offers an opportunity for the service to evaluate new and existing practice in key areas. Staff from the VKPP will be working to gather information from national leads across a range of areas, as well as engaging with force violence and public protection leads to understand different ways of working. We are keen for officers and staff to share practice examples with the College and the VKPP to help ensure we capture the full range of interventions and approaches being used across the service. Please complete the Intervention Submission Form below.

You can contact the VKPP at vkpp@norfolk.pnn.police.uk  and the College at vulnerabilityprogramme@college.pnn.police.uk