David Kelly was still employed by Porton Down at the time of his death, as I understand the convoluted restructurings of organisation in that sector. See, for example, mod_2_0009to0011.
In video 3 of the Anthrax Wars, YouTube - anthrax wars 3/7, brief mention is made of Operation Antler. The Wiltshire Police, it seems, passed papers to the Crown Prosecution Service with a view to prosecution of Porton Down scientists.
Operation Antler investigated experiments using biological agents (as well as chemical agents). See, for example, MoD 'can challenge Porton case'.
The information made public by Wilshire Police about Operation Antler, Wiltshire Police Operation Antler information, seemingly has been removed from the Wiltshire Police web site.
David Kelly was, according to the video, found dead in 2003 shortly after the Crown Prosecution Service decision.
I am unable to trace any mention of Operation Antler on the Hutton Inquiry website.
Is the failure of Lord Hutton to consider the possible relevance of Operation Antler to the death of Dr. David Kelly because it was irrelevant or because it was too important to mention?