Yeah, you gave the police his name. But you never exactly described his appearance did you? Nope. But no you're kinda forced into helping Silver hide from the police and become champion without getting caught. Bro really stole a Pokemon even though he could just ask Professor Elm if he could choose one.

The bounty over his head? $50,000. Even Silver was surprised with that amount.

How can you be rivals with a thief? Or someone related to Team Rocket?

You didn't want this responsibility, looking out for a thief! It was stupid! Why should you help the same boy that treated you like total garbage back then? But since the police found out that you were helping Silver, you were now on Johto's most wanted list.