NET
29 Then those who were about to interrogate him stayed away from him, and the commanding officer was frightened when he realized that Paul was a Roman citizen and that he had had him tied up.
Darby
29 Immediately therefore those who were going to examine him left him, and the chiliarch also was afraid when he ascertained that he was a Roman, and because he had bound him.
KJV
29 Then straightway they departed from him which should have examined him: and the chief captain also was afraid, after he knew that he was a Roman, and because he had bound him.