Acts 22:25-26

22:25 When they had stretched him out for the lash, Paul said to the centurion standing nearby, “Is it legal for you to lash a man who is a Roman citizen without a proper trial?” 22:26 When the centurion heard this, he went to the commanding officer and reported it, saying, “What are you about to do? For this man is a Roman citizen.”

Acts 16:38-39

16:38 The police officers reported these words to the magistrates. They were frightened when they heard Paul and Silas were Roman citizens 16:39 and came and apologized to them. After they brought them out, they asked them repeatedly to leave the city.