At Weymouth Bay, Lyme Bay and Portland Bill between 1963 and 1975, The Dorset Defense Trials took place under the control of the MoD (it also included a joint operation with the U.S. Army and Navy). Numbering 7 individual trials in the area, a series of sea trials took place where both live and dead bacteria were sprayed by different means over vast areas of the locale, both from ships off the coast and from the air. The 4 types of bacteria included E. Coli, Bacillus globigii, Bacterium aerogenes and Serratia marcescens.
According to an independent review undertaken by Prof. Spratt of the University of Leeds in 1999. “It is, however, surprising that suspensions with this level of contamination with uncharacterised bacteria were sprayed across populated areas, as there was a possible risk that the contaminating bacteria had a significant ability to cause disease in humans, even though they apparently caused no toxicity in the safety tests in mice.
According to reports, Prof. Spratt was never given all of the classified information related to the trials
In response to public calls for further clarification of the future possibility of more biological trials, the government ( the Defence Evaluation Research Agency (DERA)) said “that they cannot rule out conducting larger scale trials in the future to try to ensure the protection of the UK from attacks by people of states using chemical and biological weapons”.
Great documentary film, on the photo click through link. With thanks to Radical Films UK and below