Categorically false, both Syria and Russia welcome an independent CW investigation in Douma.
In fact, an international team from OPCW is enroute to Douma to conduct an independent investigation at the invitation of the Syrian government with Russian troops providing security.
Western interventionists won't be able to manipulate the results of this OPCW investigation they way they did in the aftermath of the 2017 sarin poisoning incident in Khan Sheikhoun.
Which is why the Russians vetoed the US sponsored plan at the UN, it was a repeat of the flawed investigation in 2017.
“with Russian troops providing security.”
LOL! Yeah, “security.”
Why don’t you go live in Russia with your comrades?