Actually, the Swiss gaming law as regards to Poker has become rather grey.
The ESBK (Gaming Commission) has decided that tournament play with sufficient entrants is in essence legal, as the outcome is determined by skill more than luck (which is why we see the same ugly melons in poker finals).
However, hand-to-hand (cash games) is illegal, because winning an individual hand is based more on luck than on skill.
The Casinos are actually currently taking this to court, as they currently enjoy a monopoly on poker play in Switzerland.
Poker games would best be kept in a private atmosphere. Having said that, I am interested.