What are the 3 grounds for judicial review ? by Afia fairuse oishi 222-26-568 - Saturday, 30 September 2023, 6:41 PM Number of replies: 0 Lord Diplock in Council of Civil Service Unions v Minister for the Civil Service[1985] states three grounds . They are -1. Illegality (unconstitutionality),2. Irrationality 3. procedural impropriety. Permalink Reply