'Commander' in the Bible

While they were saying this to the people, the Priests, the Commander of the Temple Guard, and the Sadducees came upon them,

When the Commander of the Temple Guards and the High Priests heard this statement, they were utterly at a loss with regard to it, wondering what would happen next.

Upon this the Commander went with the officers, and brought the Apostles; but without using violence; for they were afraid of being stoned by the people.