Herod's jurisdiction - Herod Antipas, a son of Herod the Great. This was the same Herod that put John the Baptist to death. Jesus had passed the most of his life in the part of the country where he ruled, and it was, therefore, considered that he belonged to his jurisdiction - that is, that it belonged to Herod, not to Pilate, to try this cause.

Herod's jurisdiction - The city of Nazareth, in which Christ had continued till he was thirty years of age, and that of Capernaum, in which he principally resided the last years of his life, were both in Lower Galilee, of which Herod Antipas was tetrarch. Pilate was probably glad of this opportunity to pay a little respect to Herod, whom it is likely he had irritated, and with whom he now wished to be friends. See Luke 23:12.

And as soon as he knew that he belonged unto (b) Herod's jurisdiction, he sent him to Herod, who himself also was at Jerusalem at that time.
(b) This was Herod Antipas the Tetrarch, in the time of whose period of rule (which was almost twenty-two years long) John the Baptist preached and was put to death, and Jesus Christ also died and rose again, and the apostles began to preach, and various things were done at Jerusalem almost seven years after Christ's death. This Herod was sent into banishment to Lyons, about the second year of Gaius Caesar.

And as soon as he knew that he belonged unto Herod's jurisdiction,.... The country which was under his power, and he had the government of; for Herod was tetrarch of Galilee, Luke 3:1. This was Herod Antipas, the son of Herod the great, and the same that beheaded John the Baptist; wherefore as soon as Pilate found that Jesus was one of his province, immediately he sent him to Herod: to be examined, and to have his cause tried before him: and this he did partly, that he might be rid of this troublesome business; and partly that he might show to Herod what a regard he had to his jurisdiction, and power; and that he was unwilling to break in upon it, or usurp that to himself, which did not belong to him: the way from Pilate's hall, to the place where Herod was, is computed, by Adrichomius, to be about three hundred and fifty steps:
who himself was also at Jerusalem at that time; or "in those days"; the days of the passover; for Herod being born a Jew, and the son of a proselyte, was come to Jerusalem, at this time, to keep the feast of the passover.

JESUS BEFORE HEROD. (Luke 23:6-12)
sent him to Herod--hoping thus to escape the dilemma of an unjust condemnation or an unpopular release.
at Jerusalem . . . at that time--to keep the passover.

He sent him to Herod - As his proper judge.