Greg Barker, the UK’s climate change minister is under pressure after it was alleged that he gave preferential treatment to one of his aides.
The adviser, Miriam Maes is alleged to have promoted her private clients while working in his energy department as an official consultant.
It has since emerged that Ms Maes was copied in to internal emails discussing the award of a £5m contract to a second company linked to her multinational energy firm, Air Products.
Luciana Berger MP, the shadow climate change minister, said: "Greg Barker must now release the minutes of any meetings that Miriam Maes attended so we can establish whether or not she was able to use her position in the Department for Energy and Climate Change to advance the commercial interests of her clients or partners."
The Guardian reports that Prime Minister David Cameron disclosed that the minister's relationship with Maes was so concerning that the cabinet secretary Jeremy Heywood had been asked to secretly look into whether she was properly appointed.
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