Can a law firm representing a government client retain classified discovery, and who declassifies it after the case?

A law firm representing a government client may handle classified material during litigation, but only under strict, government-controlled conditions. The firm never “owns” the information, and it does not decide when that material becomes unclassified. Those authorities stay with the executive branch.

Who Can Hold Classified Discovery

Classified information remains the property of the U.S. Government regardless of who is litigating. For outside counsel to access it, several conditions generally apply:

• Personnel security clearances. Each attorney, paralegal, or expert who reviews the material typically must hold a clearance at the appropriate level, granted after an investigation and need-to-know determination.
• Approved storage. Classified discovery cannot sit in an ordinary office file. It must be stored in facilities and containers that meet federal security standards, often a designated secure space.
• Protective orders and court security. In litigation involving classified evidence, courts commonly issue protective orders and rely on a court security officer to control handling, copying, and filing.

In short, a firm may retain custody of classified discovery during a case, but it does so as a controlled custodian operating under the originating agency’s rules, not as an independent owner.

Who Declassifies It After the Case

A law firm cannot declassify anything. Declassification authority rests with the executive branch under the governing executive order on classified national security information, overseen by the Information Security Oversight Office (ISOO).

Material is generally declassified by:

• The originating agency (the agency that classified it), which may declassify on a set date or event, or on review.
• Automatic or scheduled declassification timelines built into the original classification decision.
• Mandatory declassification review, a process a requester can invoke.

After a case concludes, the firm does not retain the classified records as its own files. Under the protective order, classified material is typically returned to the government or destroyed under supervision. Any later decision to declassify is made by the agency, not by counsel.

For more on these processes and oversight, see the declassification topic hub.

Key Takeaway

Counsel may temporarily hold classified discovery under clearances, secure storage, and a protective order, but declassification is always a government function exercised by the originating agency under executive-branch rules.