 Alongside Robert Badinter and Karel Schwarzenberg, she became one of the first signers of the 2015 Paris Declaration which calls for European governments to develop a coordinated approach in addressing China’s policies in Tibet.Roth has been criticized for her positive relations with the Islamic Republic of Iran.Along with fellow lawmakers Günter Gloser, Monika Grütters, Luc Jochimsen and Peter Gauweiler, she travelled to Iran in 2010 to meet with Ali Larijani, Manouchehr Mottaki and others; the trip was heavily criticized by international human rights organizations.