Yes, Saddam had his first day in court months ago, but that was for his arraignment which is the initial appearance before a judge in a criminal case. At an arraignment, the charges against the defendant are read, a lawyer is appointed if the defendant cannot afford one, and the defendant's plea is entered.
This is a part of international law. If this matter was left to the International Court in the Hague, it would take years for the arraignment and many more years for the trial.
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"Love all, trust a few, do wrong to none"
All's Well, Act i, Sc.2