Dominic Cummings plans to visit the SAS headquarters at Credenhill in Herefordshire and secret military sites as Whitehall carries out a major defence review, it was claimed today.

The Prime Minister’s controversial top aide will tour some of Britain’s most highly classified national security sites, the Sydney Morning Herald reported.

As well as visiting the famous base in Hereford, he also plans trips to the Special Boat Service HQ in Poole, Dorset.

Also on the list are said to be the Porton Down chemical weapons research centre in Wiltshire, the Rapid Capabilities Office at Farnborough, Hants, and the Defence Intelligence Fusion Centre at RAF Wyton, Cambs.

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