How does Gifford put pressure on John Wesley to give up information about Sylder?

John Wesley tells Sylder about how all of his traps were confiscated and he had been threatened by Gifford. He was told that he was trapping without a license and that he could be charged for aiding a criminal, too, since the man he helped out of the car was a bootlegger. Gifford implied that if the boy gave him some information about Sylder, the charges might be dropped.