Wonderwoolley
OK, lets split legal and scientific
Until 2001 pigs in the UK were fed pig swill which contained both meat and veg from kitchens, caterings and all food outlets. This had to be heat treated, and it was lack of sufficient heat treatment that led to the 2001 outbreak according to the authorities. Until 1967 pigs were fed raw swill and had been for many centuries!
Pigs are omnivores, and wild boar quite happily eat any dead animals they find.
So scientifically feeding meat and veg will not do your pigs any harm.
Legally feeding waste throughout the EU is governed by EU regulation 1774/2002 which in the UK is enacted by the Animal by-products regulations 2005 which states in article 11(5)
(5)It is an offence for any person to allow livestock to have access to any catering waste.....
(7) In this regulation “livestock” means all farmed animals, and any other ruminant animals, pigs and birds (other than wild birds).
Catering waste is defined at the start of Article 11of the UK legislation:
This regulation applies in relation to—
(a) catering waste of all kinds...
So in the UK it is a blanket ban on all catering waste, within which Defra counts domestic premises.
But the EU legislation does not define catering waste, and it is up to each EU state to either define in it's domestic legislation or if not defined, then decide what to prosecute. So iof a country chooses to allow a difference between domestic and catering waste, then that's up to them.
So it may well be acceptable either by law or by custom in France to feed kitchen scraps. I personally don't know, but I do know that many EU states manage to interpret long and complicated EU legislation very differently !
Wonderwooley - if you have some source in France to quote on this, I'd love to see it, it would be interesting.
Finally is it desirable to allow this to happen - well that depends entirely on your point of view, and I don't plan to go there !