Germany and Turkey failed to agree on terms for the extradition of convicted militant Islamist on Tuesday. During a visit to Turkey on Tuesday, German Interior Minister Otto Schily sought to obtain a guarantee that Metin Kaplan would get a fair trial in Turkey. Following a meeting with Turkey's justice minister, Schily said several issues remained unresolved. The justice minister did promise that Ankara would not use any evidence gained as a result of torture in any trial of Kaplan, who is known to his followers in Germany as the "Caliph of Cologne." Ankara wants to try Kaplan for allegedly plotting a terrorist attack in Turkey in 1998. Last month, a German court barred his extradition on the grounds that he would not get a fair trial.