Prime Minister David Cameron has been pressed on if the decision to employ Sir Philip Green as a government adviser contradicts the government's stance on aggressive tax avoidance.

Pressed by John Humphrys on whether Sir Philip's tax strategy - whereby he transferred ownership of his company to his wife, registered in Monaco, to avoid tax - amounted to "morally repugnant" tax avoidance, he refused to comment on an individuals' tax affairs.

But he accepted that "that sort of thing" was not acceptable, and that in general it was not sensible to have dealings with people who aggressively avoided tax.

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