Acts 16:37

16:37 But Paul said to the police officers, “They had us beaten in public without a proper trial – even though we are Roman citizens – and they threw us in prison. And now they want to send us away secretly? Absolutely not! They themselves must come and escort us out!”

Acts 22:25-29

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.” 22:27 So the commanding officer came and asked Paul, “Tell me, are you a Roman citizen?” He replied, “Yes.” 22:28 The commanding officer answered, “I acquired this citizenship with a large sum of money.” “But I was even born a citizen,” Paul replied. 22:29 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.

Acts 23:27

23:27 This man was seized by the Jews and they were about to kill him, when I came up with the detachment and rescued him, because I had learned that he was a Roman citizen.