Rishi Sunak’s sweeping shake-up of Whitehall which saw the creation of four new government departments could cost over £100m, a leading think tank has warned.
The prime minister announced the set-up of a new department for energy security and net zero, another for science and tech, while there are major changes at business and culture.
But the Institute for Government said the overhaul, the biggest reorganisation since Brexit, could amount to over £100m and take years to implement.
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