A federal grand jury investigated her claims but issued no indictments.
Based on this information, a grand jury did not issue an indictment against Civello.
A grand jury has issued subpoenas in that case, Conway said.
In its place, the grand jury issued another subpoena to be returned early next month.
It is only the second time in the nation a grand jury has issued an indictment under the statute.
A grand jury occasionally issues a report after an investigation when it believes there is a compelling public interest.
A federal grand jury in Washington is issuing the subpoenas, scientists and officials said.
Even if criminal charges did not result, he said, the grand jury could issue a report highlighting problems at the institution.
The grand jury has issued at least 270 subpoenas for testimony or documents.
The jury issued its verdict after four days of deliberations.