Attorneys for a convicted military contractor are locked in a battle with federal prosecutors over the release of information the government obtained during an eight-month probe into whether the defendant threatened the judge, prosecutors and a defense attorney.

Lawyers for David H. Brooks, sentenced to prison for his role in a $200 million fraud and obstruction of justice case, are seeking the information in a motion to compel that also requests U.S. District Judge Joanna Seybert of the Eastern District of New York to disclose what and when she was told about the alleged threats.