The Virginia Bureau of Investigation (VBI) was the federal investigative body of the country of Virginia. The agency was primarily responsible for Virginia's national security. While Virginia was a functional republic, the VBI had wide latitude in what actions it could take protect the country, including arresting and imprisoning uncooperative witnesses.
Special Agent Jefferson, backed by Agent Madison and Agent Tyler, investigated a possible Negro revolt during the Ohio-Virginia War of 2097. This included asking Beckie Royer and Justin Monroe questions about the discovery of the body of Charlie Clark. Beckie was actually looked at harder, since she was from California. However, Justin had much more to worry about, since he was from another timeline.