The Palestinian refugees' right of return is enshrined in international law and UN resolutions, and that is no trick my dear. You should familiarize yourself with it. Israel's racist laws speak for themselves. If these laws were used on Jews anywhere else in the world, there would be a great public outcry. At least, thankfully for some of the really decent Israeli citizens who have some moral conscience.
Justice Ministry: Information examined by AG about Gal Hirsch didn't come from police (Haaretz)