He very lawerly responded to their accusations.
One other note about this is that when Jesus was brought before the Roman leadership (Pilate, later Herod, than back to Pilate) they couldn't find anything to convict him for on legal grounds. Pilate wanted to release Jesus for being innocent. The Jewish leadership didn't have the authority (under Roman rule) to execute Jesus. They wanted to execute him for blasphemy, which the Romans wouldn't go for, so they trumped up an insurrection charge, which the Romans didn't buy. If the Jews or the Romans feared Jesus as a revolutionary, it would've been fairly easy to have him executed, but the Jews needed to get the Romans to execute Jesus for reasons of Jewish religious law, something the Romans were reluctant to do, until Pilate finally caved and said basically "do what you want, but it's on your head"