The Department of Justice has charged a former top adviser to Dr. Anthony Fauci, accusing him of hiding and destroying records tied to investigations into the origins of COVID-19.

David Morens, 78, who spent years as a senior adviser at the National Institute of Allergy and Infectious Diseases, faces multiple federal charges, including conspiracy against the United States and several counts related to the destruction and concealment of records. If convicted on all counts, he could face decades in prison.

According to the indictment, unsealed in federal court in Maryland, Morens is accused of working with others to keep certain communications and documents out of reach of investigators and the public. Prosecutors say the effort was aimed at avoiding scrutiny under federal transparency laws like the Freedom of Information Act.

Two additional individuals are described in the indictment as co-conspirators, though not named as defendants. Details in the filing point to Peter Daszak, who leads the nonprofit EcoHealth Alliance, and Gerald Keusch of Boston University. Both have been connected to research efforts involving coronaviruses prior to the pandemic.

The case centers heavily on how Morens handled communications during the early stages of the pandemic. Investigators allege he frequently used a personal Gmail account for official business and took steps to delete or move messages in ways that would make them harder to retrieve through records requests.

In one 2020 email cited in the indictment, Morens suggested there were efforts underway within the National Institutes of Health to manage the situation in a way that would limit fallout for colleagues and affiliated organizations. Other messages show him discussing ways to share information outside official channels or avoid leaving a paper trail.

Prosecutors also point to exchanges between Morens and Daszak that suggest a closer relationship. In one instance, Daszak allegedly sent Morens a gift—two bottles of wine—along with a message thanking him for his support behind the scenes. Morens responded by floating the idea of writing scientific commentary that would highlight EcoHealth’s work.