Some good info about the breathalyzer law here: http://www.drive-france.com/faqs/france-breathalyzer-law/
Seems like another good reason NOT to visit the land of the "cheese eating surrender monkeys". So not only Brexit they are screwing us with then!
I thought that law had been withdrawn? Although I have them on my Arai from trip to France 2016, never bothered to remove them
there were talks in France of doing away with that law, I dont believe anything ever came off it. I dont always keep track of the changes. The things that I know coppers tend to look for will be: riding with headphones riding without gloves I have never bothered putting reflective stickers on my lid, half the time I dont bother with beam correctors either.