Swiss people don't fuck with the origin of the products they buy.

Everything Swiss made will have probably a Swiss cross somewhere, if some subproduct is of Swiss origin, it's clearly stated.

I remember seeing some kind of oniony article in newspaper last year about Zweifel, local potato chips company, being in trouble because they had to re-label thousands of potato chips bags as due to bad harvest in Aargau, they had to import potatoes from Germany and they could not keep the "Swiss potatoes" label.

They could have not given a fuck but if discovered, Swiss people would consider that high treason. It's probably why it made the news in the first place.