1.   But in a boost to the pro-Bentsen camp, investigators have secured another Hanson-authored computer file that contradicts the released material.

2.   Under present law, investigators must secure separate warrants for each telephone they wish to wiretap.

3.   Holding them allows investigators to secure their testimony before a grand jury, which investigates a crime and indicts individuals if there is sufficient evidence.

4.   Holding them allows investigators to secure their testimony before a grand jury.

5.   Those whose buildings are within the area secured by investigators are allowed just brief visits to their offices.