 In addition, she was a member of two committees of inquiry in the European Parliament, namely the Committee of Inquiry into Racism and Xenophobia and the Committee of Inquiry into Links between Organized Crime and Drugs, as well as of the EC-Turkey Joint Parliamentary Committee.From 1989 to 1990, Roth briefly served as deputy chairperson of the Green Group in the European Parliament.In the 1994 European elections, Roth was again elected to the European Parliament as a lead candidate of Alliance 90/The Greens.