The Swiss police have launched an investigation into possible discrimination against Jewish customers by a mountain restaurant in Davos. A private individual alerted the police on Sunday to a notice posted at the restaurant, police spokesman for the region of Grisons, Roman Rüegg, said on Monday. The police have looked at the notice and are now investigating whether the offence of discrimination or incitement to hatred has been committed, he said. Jehuda Spielman, a local councillor from Zurich, published a photo on the social media platform X, formerly Twitter, showing the notice posted by th…