On or about February 23, it became known that a new federal grand jury had been empaneled in Minneapolis to investigate whether Derek Chauvin had violated George Floyd’s civil rights, i.e., his right against unreasonable seizure or right to due process.
Apparently this federal investigation does not involve the other ex-officers now facing state charges of aiding and abetting Chauvin’s conduct.
Because grand jury proceedings are secret, little is known about the specifics of the investigation.
 Arango & Benner, With New Grand Jury, Justice Department Revives Investigation Into Death of George Floyd, N.Y. Times (Feb. 23, 2021), https://www.nytimes.com/2021/02/23/us/george-floyd-death-investigation-doj.html?searchResultPosition=1; Balsamo (Assoc. Press), Federal grand jury hearing evidence in death of George Floyd, StarTribune (Feb. 24, 2021).