https://identityassurance.blog.gov.uk/2014/12/04/national-audit-office-briefing-paper-on-identity-assurance/

National Audit Office briefing paper on identity assurance

The National Audit Office (the body that scrutinises public spending on behalf of Parliament) has published a briefing paper on identity assurance today.
The paper gives an overview of how the identity assurance programme and GOV.UK Verify work, how GOV.UK Verify fits in with wider digital transformation work being done by government departments and how we're planning to develop and scale GOV.UK Verify over time.