11.   Belot sealed the warrant for the arrest of a material witness, as well as documents supporting the arrest.

12.   Both brothers were taken into custody and, in separate hearings Saturday, judges ordered them held in jail as material witnesses in the bombing.

13.   Both are being held as material witnesses in the bombing.

14.   Both men are being held in jail in New York as material witnesses in the investigation, although authorities said they had not provided much cooperation.

15.   A judge must first sign off on an order designating a person as a material witness.

16.   A higher standard applies to the arrest of a material witness.

17.   A man held as a material witness in the bombing was charged Tuesday with conspiracy and firearms violations.

18.   After the attacks, Moussaoui was transferred to New York as a material witness.

19.   Al-Marri was arrested on a material witness warrant in December, then charged in January with illegal possession of credit cards.

20.   Al-Hazmi was held for nearly a week as a material witness.