In the 1950s the Chemical Defence Experimental Establishment became involved with the development of CS, a riot control agent, and took an increasing role in trauma and wound ballistics work.
32.
Since 1990, the Biological and Chemical Defence Review Committee has conducted annual site visits and inspections to verify that all remaining military activities involving chemical warfare agents are defensive in nature.
33.
When the results of her private research became known, she was put in charge of one of the research teams of the Chemical Defence Research Department under the Ministry of Supply.
34.
This may be because the plant has large epidermal cells which are easy to exploit or because of the absence of tannins, a chemical defence against herbivores used by some seagrasses.
35.
Any other naval personnel of OF-5 on-shore assignments ( e . g . medical service, chemical defence, marines, and naval aviation ) have been entitled Polkovnik.
36.
The main purpose of the facility was the testing of chemical weapons that had been developed in Berlin at the Army Chemical Defence Laboratory in Spandau Citadel ( " Heeresgasschutzlaboratorium Zitadelle Spandau " ).
37.
The "'Experimental Station Suffield "', under the administration of the Canadian Army, commenced operations on June 11, 1941 as a joint British / Canadian biological and chemical defence facility.
38.
Researchers found that the compounds involved were identical in various members of the genus " Agelas ", showing that such chemical defences must have been in use before the species evolved from a common ancestor.
39.
In 1939, with the outbreak of World War II, his expertise was again sought by the British and South African governments as an advisor on chemical defence matters and to oversee ordnance factories built in South Africa.
40.
The evolution of angiosperm plants between 50 and 200 million years ago resulted in the development of many antioxidant pigments particularly during the Jurassic period as chemical defences against reactive oxygen species that are byproducts of photosynthesis ."
