What is the current state of the law on the supervisory liability of a senior civil servant?

Circuit has held that "[s]upervisory liability is imposed against a supervisory official in his individual capacity for his 'own culpable action or inaction in the training, supervision, or control of his subordinates,' . . . for his 'acquiesce[nce] in the constitutional deprivations of which [the] complaint is made,' . . . or for conduct that showed a 'reckless or callous indifference to the rights of others.'" Larez v. City of Los Angeles, 946 F.2d 630, 646 (9th Cir. 1991) (citation omitted).