Preventing the First Offence

A strategic partnership for Youth Justice Services — for children and young people on the cusp of the justice system to those at demonstrable risk of entering it.

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Find the children, that need us most

Linked local authority data shows that a small cohort — a small percentage of children and young people known to social care — accounts for a large proportion of serious violence offences committed. The Evolve Development Tracker narrows a universal cohort to a manageable intervention group using attendance, behaviour, wellbeing, self-efficacy and teacher observation — without stigmatising labels.

A trusted adult, where they are needed

Evolve Health Mentors are highly trained, trauma-informed, trusted adults who are embedded in schools for a set number of days per week. They deliver relational, strengths-based support that builds each child's pro-social identity, engagement and self-efficacy — operationalising Child First principles in the setting where children and young people are reachable every day.

~70%

of serious violence offences from ~8% of children known to social care

~£1,200

cost per child per year, compares very favourably to other programmes and interventions

c.6:1

modelled financial return within Ministry of Justice budgets alone

2029

guaranteed Turnaround funding settlement creates a window to demonstrate the model

How It Works


Step 1

Identify

Start with a universal cohort upstream of the peak age of first offence. Live Evolve Development Tracker data narrows the group to those children and young people most in need of support.

Step 2

Intervene

An embedded Health Mentor supports a caseload of ~20 children per school with mentoring, group work and family engagement — voluntary, relational and shaped with each young person.

Step 3

Evidence

A four-strand contribution framework: an actuarial baseline from linked data, termly intermediate outcomes, area-level first-time entrant trends, and 12-month proven-offence tracking.

Maps to the 2026 Reform Agenda


  • Cutting Youth Crime. Changing Young Lives — directly addresses the shift from a crisis of capacity to a crisis of complexity through earlier intervention
  • Turnaround expanded eligibility — children looked after, children in need and children on family plans map directly onto our target cohort
  • Young Futures Panels and Hubs — a working, school-based blueprint for the trusted-adult model and multi-agency data sharing
  • Child First principles — strengths-based, collaborative support that sees children as children, not future offenders
March 2029 The Turnaround programme's three-year funding settlement is guaranteed to this date — the window for Youth Justice Services to demonstrate a commissioned prevention partnership and build the evidence base.

The Evidence, Honestly


  • There is no counterfactual for a prevented first offence — so we measure against a transparent actuarial baseline rather than claiming what cannot be proven
  • Intermediate outcomes are tracked termly — attendance, suspensions, wellbeing and self-efficacy, mapped to the VRU Outcomes Framework
  • Our economic model is deliberately conservative — assuming only half the children we support would otherwise have entered the justice system
  • Success is measured by the children who never appear in the data — and we publish what we find, including where the evidence isn't there yet

Commission prevention that pays for itself.

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