One of the former Memphis Police Scorpion Unit officers accused in the beating of Tyre Nichols testified on Tuesday in the federal trial charging three of the five officers with civil rights violations.

As the civil rights trial of three of their former team members continues, Desmond Mills and his former colleague, Emmit Martin, have both now admitted on the stand to using excessive force as officers violently took Nichols’ into custody after a traffic stop in January of last year.

Former Memphis police officer Emmitt Martin took the stand in the Tyre Nichols trial Monday, testifying that officers "exaggerated" the traffic stop.