Not an Aljazeera fan at all, was searching for Sergei Skripal information and this link came up.
Makes very relevant claims about the Us/UK having access to the nerve agent…
""Novichok had been produced in Uzbekistan in the Soviet times and after the fall of the Soviet Union, as we know, the American intelligence services had access to this factory," Markov said."
https:// www.aljazeera.com/news/2018/03/conspiracy-theories-rife-russia-sergei-skripal-poisoning-180313080229802.html