How to guide: Calls for Evidence
Updated 4 August 2026
To ensure an effective call, in addition to considering the key principles set out in section 1, follow these steps:
Define the purpose and intended use
-
Set out why the call is being run.
-
Explain what decisions or next steps it will inform.
-
Set out how responses will be used, including whether and how they will be published.
Plan governance and information handling early
-
Decide how submissions will be received and stored, how personal data will be managed, and what may be shared across HMG or publicly.
-
Seek internal advice on security, legal, and data protection where relevant.
Ask focused, answerable questions
-
Keep questions proportionate to available time and analytical capability of the team managing the call.
-
Specify the types and formats of evidence sought (e.g. data, case studies, evaluations, literature, practical experience), and what constitutes useful evidence.
-
Test questions and introductory text with experts and knowledge mobilisers before finalising.
Analyse and synthesise transparently
-
Use clear approaches for triage, assessment, and synthesis of inputs - including conflicting evidence.
-
Record key themes, limitations and levels of confidence, so outputs are usable and auditable.
Acknowledge contributions and cite evidence
-
Respondents should be thanked for their submission by email receipt. Include expected next steps in the text (for example, all submissions will be considered, a small number will be contacted for further engagement).
-
Contributors should be listed in an annex to any published reports whenever possible.
-
Where submissions inform reports, briefings or published outputs, reference sources to acknowledge contributions and support transparency and credibility.
Close the loop
-
Where possible, provide feedback and communicate what was learned and what will happen next.
-
Maintain accessible records to support future work and reduce repeat requests.
You can read technical details of how to publish Calls for Evidence on GOV.UK.