 Pöllath is a member of the council for the Lindau Nobel Laureate Meetings.In 2013, Pöllath was put into investigative custody for nine days, following suspicions of aiding in the evasion of gift taxes in the amount of up to 440 million Euro by the pharmaceutical billionaire Curt Engelhorn, whose assets Pöllath managed.The tax rebate negotiated with the authorities by the Engelhorn family is said to amount to around 135 million Euro.