France has been a major source for the long fibre needed to make banknotes and strong archival paper. If its good for fibre, it ain't good for THC. Unless of course they were supplying other markets...
The EU had a 3 year fibre test program in the late Eighties (I think), in which Finland took part - until the local cops decided that they knew better then the EU.
BTW St Petersburg houses the largest seed repository of hemp in the world. You can't be me, I'm taken