Albert Barnes on Acts 23:35

In Herod's judgment hall. Greek, In the praetorium of Herod. The word here used denoted, formerly, the tent of the Roman praetor; and as that was the place where justice was administered, it came to be applied to halls, or courts of justice. This had been reared probably by Herod the Great as his palace, or as a place for administering justice. It is probable also that prisons, or places of security, would be attached to such places.

(g) "accusers" Acts 24:1, 25:16 (h) "Herod's" Mt 27:27