The Justice Department corrected a legal filing Tuesday to reassert its conclusion that a lone federal scientist staged the fall 2001 anthrax attacks that killed five people and sickened 17 others.

Court papers the department submitted Friday suggested that the government had altered its position regarding circumstantial evidence pointing to Bruce Ivins.

The department said Tuesday that it was not altering its position and that the earlier filing contained “inaccurate information.”

The court filings, prepared by the Justice Department’s civil division, came in a $50 million lawsuit filed by the widow of the first anthrax victim.

The Justice Department is trying to get a federal judge in Florida to dismiss the suit filed by Maureen Stevens. Her late husband, Robert Stevens, worked in Boca Raton at American Media, the publisher of the National Enquirer, Sun and Globe tabloids, when he was exposed to anthrax. He died Oct. 5, 2001.

The lawsuit contends that the government was negligent in failing to adequately safeguard strains of anthrax at the U.S. Army Medical Research Institute of Infectious Diseases at Fort Detrick, Md.