[JURIST] Dietrich Snell, senior counsel for the National Commission on Terrorist Attacks Upon the United States [official website] and NY deputy attorney general, said Wednesday that he will testify at the German trial of 9/11 suspect Mounir El Motassadeq [BBC profile]. Motassadeq was convicted in 2003 for his alleged role in the 9/11 terror plot, but that conviction was overturned and a new trial ordered [JURIST report] after a judicial determination was made that new evidence made the original conviction unreliable. Snell will appear before a German court next Tuesday to give a detailed description of the 9/11 Commission's findings, but will omit information deemed classified by the US government. Snell's testimony is expected to include details about statements made by two terror suspects in US custody. Last summer, the DOJ told the court that the suspects said that Motassadeq had no prior knowledge of the plot [JURIST report], but warned that those statements may be unreliable. Deutsche Welle has more.