When he learned that Jesus was under Herod’s jurisdiction, he sent him to Herod, who was also in Jerusalem at that time.
When Herod saw Jesus, he was greatly pleased, because for a long time he had been wanting to see him. From what he had heard about him, he hoped to see him perform a sign of some sort.
He plied him with many questions, but Jesus gave him no answer.
The chief priests and the teachers of the law were standing there, vehemently accusing him.
Then Herod and his soldiers ridiculed and mocked him. Dressing him in an elegant robe, they sent him back to Pilate.
References for Luke 23:11
That day Herod and Pilate became friends—before this they had been enemies.
References for Luke 23:12