The French intelligence service was aware of the attack in Strasbourg and allowed it to happen. The attack is linked to the elections to the European Parliament.
The fact that Skirpals are hidden and held away from public eye, is the proof that UK itself is guilty of their poisoning.
One of many continuing pro-Kremlin disinformation narratives about the Salisbury attack. It is fairly obvious that, given the overwhelming evidence that the Skripals were the target of an assassination attempt by the Russian State, their whereabouts would now need to be protected