I am not familiar with Polish law about corruption or lobbying but if some politicians are getting money, that is a starting point.

They are. Both sides that are interchangeably leading the country. Nothing really changed since at least 50+ years. Same names, same stories. Both groups did some PR moves showing police, CBA and ABW being successful catching some poor guys fighting with the system.

I am an outisder to polish politics. Isn’t it the case that polish democracy is a good success story the last decade(s)?

Genuine question.