Justice Dept. convenes grand jury for civil rights investigation into Minneapolis officer Derek Chauvin involving 2017 arrest of a 14-year-old boy similar to the fatal collar of George Floyd The Department of Justice has convened a new grand jury in Minnesota in its civil rights investigation of former Minneapolis police officer Derek Chauvin It involves a probe into Chauvin's 2017 arrest of a 14-year-old During the arrest, video showed the boy lost consciousness as Chauvin held him in a neck restraint The federal investigation was launched last May but had languished It has been given a new push since Biden took office in January