The police chief of Minneapolis in the US has testified that ex-officer Derek Chauvin violated the agency’s policy on force during the arrest of George Floyd.
Medaria Arradondo said the way Mr Chauvin restrained Mr Floyd was not in line with training and certainly not part of ethics and values of policing.
The police chief had fired Mr Chauvin and the three other officers involved days after Mr Floyd’s death last May.
Mr Chauvin is on trial for murder and has denied the charges against him.
Footage of Mr Chauvin, who is white, kneeling on African-American Mr Floyd’s neck for more than nine minutes last year sparked global protests against racism.