The Supreme Court is reviewing a civil rights lawsuit regarding a police shooting of Ashtian Barnes during a traffic stop in Houston. The focus is on whether courts can consider events leading up to the shooting, rather than just the moment of perceived threat. Justices seemed inclined to allow the claim to proceed, suggesting that the lower courts wrongly applied the 'moment of the threat' doctrine. A ruling may clarify nationwide standards for evaluating excessive force cases and impact future civil lawsuits against police officers for use of deadly force.