HC Deb 25 January 1989 vol 145 c655W
Mr. Flynn

To ask the Secretary of State for Defence if there are any stocks held at any Ministry of Defence establishment in the United Kingdom or elsewhere of(a) diphenylaminechloroasine, or phenarsazine chloride (Adamsite), (b) phosgene, (c) dichlororethyl sulphide, (d) hydrocynanic acid, (e) chlorovinyldichloroarsine and (f) diphenylcyanoarsine.

Mr. Sainsbury

The Ministry of Defence holds small experimental quantities of agents solely for research into protective measures for personnel against chemical and biological attack. These include substances of the type identified in the question. The United Kingdom abandoned its offensive capability in chemical warfare in the late 1950s and does not hold stocks of agents for offensive purposes.