But when they had tied him up with thongs, Paul said to the centurion who was standing by, "Is it legal for you to flog a Roman citizen who is uncondemned?"
References for Acts 22:25
When the centurion heard that, he went to the tribune and said to him, "What are you about to do? This man is a Roman citizen."
The tribune came and asked Paul, "Tell me, are you a Roman citizen?" And he said, "Yes."
References for Acts 22:27
The tribune answered, "It cost me a large sum of money to get my citizenship." Paul said, "But I was born a citizen."
Immediately those who were about to examine him drew back from him; and the tribune also was afraid, for he realized that Paul was a Roman citizen and that he had bound him.
Since he wanted to find out what Paul was being accused of by the Jews, the next day he released him and ordered the chief priests and the entire council to meet. He brought Paul down and had him stand before them.
References for Acts 22:30