What is the case law on objectively reasonable force?

Officer West next argues the district court's instructions failed to convey the proper standards as to objectively reasonable force. Specifically, Officer West argues that Tennessee v. Garner established a constitutional justification for the use of deadly forcean officer can use deadly force if she is confronted with an imminent risk of death or serious bodily injuryand that, by failing to instruct the jury on this specific justification, the court left the jurors inadequately informed as to the law. We disagree.