Article L442-9 of the French Commercial code
I. – It is punishable by two years’ imprisonment and a fine of €30,000 to artificially raise or lower either the price of goods or services, or of public or private items, in particular during remote auctions: 1° By disseminating, by any means whatsoever, false or slanderous information; 2° By introducing on the market or soliciting either bids intended to disturb prices, or overbids or underbids made at the prices…