And he recently pressed nearly 400 of the world's largest financial institutions and law firms to turn over millions of Enron-related documents or face court-backed subpoenas.

Among the areas of scrutiny will be the destruction of Enron-related documents by Arthur Andersen, the company's auditing firm.

The government had a strong case because huge amounts of Enron-related documents were shredded soon afterward.

The jurors did not accept the government's argument that Andersen's shredding of Enron-related documents amounted to a mass cover-up.

It went out of business after it destroyed Enron-related documents and was convicted of obstruction of justice.

White House officials said tonight that they were uncertain about the extent of Enron-related documents they had.

Andersen is under intense scrutiny after reports that its employees destroyed Enron-related documents earlier this month.

Mr. Duncan also said that he destroyed some of his own Enron-related documents in an effort to comply with Andersen's document retention and destruction policies.

The Army is also collecting Enron-related documents for the task force.

Those other cases may help explain why, under the government's theory of the case, Andersen tried to destroy Enron-related documents, she said.