The Chair of the Advisory Committee on Business Appointments says he's "not really come across anything like it before" after a former Government Chief Commercial Officer was able to take a job at Greensill Capital while still working in Whitehall.

Lord Pickles made clear that the current lobbying system needed "urgent reform".

Meanwhile former Prime Minister David Cameron has said he will respond "positively" to any request to give evidence over the Greensill affair.

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