Although the office interviewed each of the accusers last year, the men insisted on having their lawyers present because they distrusted the investigators.
His office has interviewed about 100 people in the town of 10,000 residents, 60 miles northeast of Springfield.
In that case, he added, his office would interview witnesses, arresting officers and others, and then determine what charges, if any, are appropriate.
He also declined to say whether his office had interviewed any Gtech official.
The attorney general's office is reviewing documents and interviewing witnesses as it decides about proceeding with charges of sexual assault.
The office conducted an investigation and interviewed survivors of forced labor at the V-2 factory.
If the office interview is waived, the local office will interview you by telephone or do a home visit.
Mr. Neafsey's office interviewed 17 people for its 30-page report.
The chief prosecutor said Monday that his office had interviewed more than "50 independent experts" and collected "thousands of documents."
The Queens district attorney's office interviewed over 100 witnesses and presented more than 500 exhibits to a grand jury.