The Official Narrative on the poisoning of Sergei and Yulia Skripal is a collection of illogical claims and assertions that cannot be made to fit together, that make no rational sense, and which would require us to hold a mass of contradictory thoughts in our head if we were to accept it. It is in short a conspiracy theory, and a particularly bad one at that.
http://www.theblogmire.com/the-uk-governments-skripal-conspiracy-theory/