New Revised Standard Version
When they had made the prisoners stand in their midst, they inquired, “By what power or by what name did you do this?”

Contemporary English Version
They brought in Peter and John and made them stand in the middle while they questioned them. They asked, "By what power and in whose name have you done this?"

New American Bible
They brought them into their presence and questioned them, “By what power or by what name have you done this?”

Douay-Rheims Bible
And setting them in the midst, they asked: By what power or by what name, have you done this?

And setting them in the midst, they asked: By what power or by what name, have you done this?

when.

Acts 5:27 And when they had brought them, they set them before the council. And the high priest asked them,

1 Kings 21:12-14 They proclaimed a fast, and made Naboth sit among the chief of the people. . . .

John 8:3,9 And the scribes and Pharisees bring unto him a woman taken in adultery: and they set her in the midst, . . .

By what power.

Exodus 2:14 But he answered: Who hath appointed thee prince and judge over us? wilt thou kill me, as thou didst yesterday kill the Egyptian? Moses feared, and said: How is this come to be known?

Matthew 21:23 And when he was come into the temple, there came to him, as he was teaching, the chief priests and ancients of the people, saying: By what authority dost thou these things? And who hath given thee this authority?

Mark 11:28 And they say to him: By what authority dost thou these things? And who hath given thee this authority that thou shouldst do these things?

John 2:18 The Jews, therefore, answered, and said to him: What sign dost thou shew unto us, seeing thou dost these things?

by what name.

Acts 4:10 Be it known to you all and to all the people of Israel, that by the name of our Lord Jesus Christ of Nazareth, whom you crucified, whom God hath raised from the dead, even by him, this man standeth here before you, whole.

Acts 5:28,40 Saying: Commanding, we commanded you that you should not teach in this name. And behold, you have filled Jerusalem with your doctrine: and you have a mind to bring the blood of this man upon us. . . .