Harriet Harman on The Andrew Marr Show
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Harriet Harman: 'question of integrity' over Liam Fox

Labour's Deputy Leader Harriet Harman has told Andrew Marr that Dr Fox must answer "truthfully and fully" all the questions which have been put to him about his friend Andrew Werritty - amid concern that the Defence Secretary may have breached the ministerial code of conduct.

She said it was "not good enough" for the matter to be investigated by Dr Fox's own department and called for an inquiry by the Cabinet Office.

Harriet Harman also discussed her new role as Shadow Culture Secretary, and Ed Miliband's proposal to differentiate between companies regarded as "predators" and "producers", through regulation and the tax system.

You can watch the Andrew Marr Show in full on the BBC iPlayer