Few racially charged trials in America have held global attention like that of white police officer Derek Chauvin for the killing of African American George Floyd. For a time it has pushed random race-hate attacks on Asian Americans over the coronavirus pandemic into the background. It has been immortalised by the words “I can’t breathe”, uttered over and over by a dying Floyd as Chauvin restrained him by kneeling on his neck for more than nine minutes during an arrest. The guilty verdict on all counts has headed off a feared explosion of rioting against police brutality and a prejudicial justice system. The landmark victory for the Black Lives Matter movement ought to have profound implications for policing, and for race and justice. But it was a victory not to be taken for granted, though it would seem that video of the police brutality made guilty verdicts against Chauvin inevitable. Thirty years ago, footage shot by a witness showed four white policemen beating African American Rodney King with their batons more than 50 times. But jurors were shown only frames without audio of bystanders’ screams and the sounds of blows landing on King, because lawyers argued it would prejudice the jury. The prosecution persuaded the jury police were acting in self-defence. The verdicts against Chauvin prompted President Joe Biden to call for a “moment of significant change” to fight systemic racism in policing. “No one should be above the law,” Biden said. Despite the different outcomes of the Floyd and King cases there are depressing similarities. One of them is that a police force will be prone to reflect the values of the society from which it originates. In that respect Chauvin’s record projects a worry. He was involved in more than 15 disciplinary cases before the George Floyd killing but remained on the beat, suggesting he is a product of the system. The system needs to change if there is not to be another Chauvin. It is to be hoped that in considering their verdicts, jurors were mindful of the prosecution’s argument that Chauvin’s trial was not anti-police, a slur often used against efforts to make excessive use of force accountable.