Acts 21:31-33
21:31 While they were trying to kill him, a report was sent up to the commanding officer of the cohort that all Jerusalem was in confusion.
21:32 He immediately took soldiers and centurions and ran down to the crowd. When they saw the commanding officer and the soldiers, they stopped beating Paul.
21:33 Then the commanding officer came up and arrested him and ordered him to be tied up with two chains; he then asked who he was and what he had done.