They will also be able to refer matters to the relevant trading standards authority, if there is any allegation of illegal activity.

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The standards for new plants explicitly refer to natural gas as a "system of emission reduction, " when in fact it is a system of emission generation.

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He defended the decision not to refer Mr Hunt, but to refer Conservative Party co-chairman Baroness Warsi, saying the Leveson Inquiry into media standards was already looking into issues of Mr Hunt's conduct.

BBC: David Cameron