A lawyer appealed on Tuesday to the German government to speak up on behalf of an Islamist, Metin Kaplan, who is currently on trial in Istanbul for treason after he was deported from Germany. Kaplan, who claims to be the 'caliph' or spiritual ruler of the Islamic world, was extradited last 12 October. Ankara promised a fair trial. Kaplan had earlier served a prison term in Germany for incitement to murder. Ingeborg Naumann told reporters in Berlin that Kaplan was not being tried according to the rules of justice. She contended prosecutors were bringing evidence that had been obtained under duress. The lawyer said she had written to German interior minister Otto Schily and asked him to press Turkey to observe trial rules that were appropriate to the rule of law. Schily led a lengthy government campaign to deport Kaplan, known as the 'Caliph of Cologne', who resisted step by step in the German courts. After Turkey abolished the death penalty, German judges said there was no bar to his extradition to Istanbul.