Which are in Switzerland the possible charges against a self-employed person that never declared his professional activity but uses a company name to be invoiced and has a company website?
The company exists from an economic perspective, i.e. sends and receive invoices for about 10 years, but is totally absent from the public registers. (Neither the company name, nor the name of the self-employed person.)
Furthermore, there is false private domiciliation, i.e. the person is unreachable by postal mail, as natural person, at his registered private address, which is in fact its business address. Hence, for prosecution, this business is invisible for as a company and unreachable as a natural person.
I'm not sure if forgery in titles would apply, because the person didn't hide his identity.
Would fraud (escroquerie) apply?