He was held for two weeks under the federal material-witness statute and controlled by supervised release for 13 months because he was to testify in the trial of Sami Omar Al-Hussayen .
He was held for 15 nights under the federal material-witness statute ( a law that allows police to hold people who are going to testify in court ) because he was to testify in the trial of Sami Omar Al-Hussayen .