My parents are facing false accusations from our neighbor, claiming they threatened their child. They seem to be using this to gain leverage in a land dispute case, which we’ve already won. What can I do to protect them?

You should immediately file a complaint with the police against the neighbor for making false accusations. Also, gather evidence to refute the allegations and consult a lawyer to explore legal options to address both the false accusation and any malicious intent related to the land dispute.