Human Expriments - Porton Down chemical human experiments

British Army Porton Down Chemical Experiments in United Kingdom

Porton Down - The Terrible Secret

Timeline of United Kingdom Porton Down laboratory of human experimenting

Porton Down Veterans Suppoert Group page Police investigating death of 25 servicemen who were used as human guinea pigs for germ warfare experiments

Porton Town British Army Human Experiments Center.

Mortality in British military participants in human experimental research into chemical warfare agents at Porton Down: cohort study

Crown Prosecutor decision :"No scientist will be charged for human experiments in Porton Down Chemical Research Center".

Odd group of accitental deaths of 40 microbiologists

My theory, why these scientists are death now,  is on  Alternative History page