The government is putting up the Chief Scientist at Porton Down to give a press interview on Sky News this afternoon on the Skripal affair.

If the government were not confident he would implicate the Russian state, they would not be doing this. But nevertheless I would be surprised if the Chief Scientist were to lie outright*, and we need to study his language very carefully. Much of course will depend on the questioning, and undoubtedly Sky News (a Fox affiliate) has been selected as unlikely to be be forensic or difficult. I have however passed to the producers, who contacted me for potential comment, the three questions I would ask given the chance:

Are you saying definitely this can ONLY be made in Russia?

How long from contact would this agent take effect?

If it is an extreme military grade nerve agent (according to Boris Johnson “novichocks” are “ten times more powerful”) then why was it thankfully comparatively ineffective?

We shall see if Sky are anything like this challenging. My fear is they will rather feed him questions like “How do you react to claims it was Porton Down that produced this nerve agent” in order to allow him to appear pained and wronged.

I shall post again after the interview. Thank you to the many people who expressed concern for my welfare at my recent sudden silence, following the rather nasty personal attacks I was encountering – I traveled last week to a family funeral at my childhood home, and was just reflecting for a few days.

*On the other hand another Porton Down scientist, Dr David Kelly, told the truth to a journalist in a broadly comparable situation and met an extremely suspicious death as a result.