The allegations relate to the financing of Mr Sarkozy's 2007 election campaign. Former president Nicolas Sarkozy is due to be questioned about claims that France's richest woman illegally helped finance his 2007 electoral campaign.
Mr Sarkozy faces allegations of accepting thousands of euros from L'Oreal heiress Liliane Bettencourt when he ran for office five years ago.'
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Liliane Bettencourt and her husband, Jean-Pierre Meyers, are financial backers of the 'arnaque' internet wine company 1855.