Evaluation guidance for targeted prevention
This section provides guidance on how a robust business case can be built for investing in targeted, proactive prevention at scale.

Building the case for prevention: From pilot to proven approach
While specific preventative interventions such as falls prevention now have established evidence bases, securing the foundations for systematic prevention at scale requires convincing a wider set of stakeholders about its return on investment. Local authorities implementing successful prevention models emphasise the need for a robust, proportionate evidence approach that satisfies both local financial directors and central government requirements.
This evidence guidance consists of three interconnected elements:
- Building an early evidence case that secures initial investment
- Tracking meaningful measures that demonstrate impact and enable improvement
- Capturing personal stories that bring data to life
Together, these elements create a compelling narrative that combines financial rigour with human impact, making the case for prevention both intellectually and emotionally persuasive.
Explore further
There are three key elements to a robust approach to evidencing targeted, proactive prevention initiatives which are also outlined:

Build an early evidence case that secures initial investment
Building a business case for proactive prevention has much in common with the approach taken to other public sector business cases, and centres on using information from the five stages of the delivery model to help populate the Treasury's 'five cases'.

Agree and track key measures of success
Although one of the most complex aspects of shifting to a proactive preventative approach, there is now significant learning across the sector about how best to measure the impact of prevention interventions.

Capturing personal stories that bring data to life
While rigorous quantitative evidence is essential, the most compelling cases for prevention centre on impact for real people. Prevention has tremendous potential to transform lives in ways that statistics alone cannot convey.