Milan prosecutors have included banks Intesa Sanpaolo and the Italian unit of France's Societe Generale in their probe into French dairy group Lactalis's bid for Parmalat (PLT.MI), a source involved in the probe said on Thursday. Tax police are investigating possible market-rigging and insider trading linked to Lactalis's takeover of Parmalat, Italy's biggest dairy group. Lactalis, Europe's largest dairy company, acquired 29 percent of Parmalat in March and offered 3.4 billion euros ($4.75 billion) for the rest of the company last month in its bid to create the world's largest dairy group. Intesa Sanpaolo (ISP.MI) and Societe Generale (SOGN.PA) have been placed under investigation for possibly failing to prevent potentially illegal conduct by employees, said the source, who spoke on condition of anonymity.
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