21.   But like many government witnesses in criminal cases, Fortier presented ample opportunities for cross-examination.

22.   But the government witness who testified against Chandler about the McFry disappearance now has come forward and said she was pressured by agents and prosecutors to lie.

23.   But the investigator told the union official that he could only witness the interrogation and could be called as a government witness should criminal charges be filed.

24.   But the only one of those former officials to ever be charged with drug offenses, Mario Ruiz Massieu, has shown little promise as a government witness.

25.   But Wednesday was the first time that Slinger, subpoenaed as a government witness, told his story under oath in court.

26.   Court records suggest Levin may become a government witness.

27.   Facing life in prison if convicted of the murder and racketeering charges against them, Gravano abandoned his chief, pleading guilty and agreeing to become a government witness.

28.   Executives representing Netscape, AOL and Sun Microsystems are government witnesses at the Microsoft trial.

29.   For his part, Hardin dismisses any possibility that Duncan could become a government witness.

30.   Fortier is expected to be a prime government witness against former Army pals McVeigh and Terry Nichols.