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Working together

to keep people safe

Setting standards, providing training and sharing good practice. Connecting everyone in policing to reduce crime and keep people safe.

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Investigations guidance updates

After public consultation, we've updated authorised professional practice (APP) and published new investigations guidelines.

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Latest news

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Authorised professional practice (APP)

Operational guidance on how to deal with different types of crime or incident – from first response through to investigation, legal issues and public protection

Effective supervision guidelines

Evidence-based advice on how to build better relationships, give constructive feedback and support wellbeing

National Police Library


Find out about our collections, how to search for a wide range of current and historical items and how you can join the library

National operating model for the investigation of rape and serious sexual offences (RASSO)

The national operating model is designed to support RASSO investigations that are victim-centred, suspect-focused and context-led.

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See how we're working together