"4 The applicant was employed, in a civilian capacity, as a bowling equipment repairer at RAF Bentwaters, an American air base. The bowling centre is part of a "cantonment" separated by a public road from the highly secure military air field. The facility is (or rather was) part of the Moral Welfare and Recreation service. It was required to be self financing. Profits from one activity might be used to subsidise another activity. However, it was not commercial in the sense of being run for the purpose of profits; its function was to provide a recreation facility for American service personnel and their dependents. In practice, but contrary to regulations, it was used by many of the local inhabitants. A `blind eye' was turned by the relevant authorities, primarily one suspects in the interests of good diplomatic relations with the indigenous population. There are not many 18 lane bowling lane centres in Suffolk. The managers of the centre had been both American and British. However, the ultimate control of all activities at RAF Bentwaters rests with the U.S. Military."
"... is necessary due to mission completion, budget constraint, the corresponding reduction in staff, and closure of facilities."
"The context in which the act took place was the maintenance by the United States of a unit of the United States Airforce in the United Kingdom. This looks about as imperial an activity as could be imagined but it would be facile to regard this context as determinative of the question. Acts done within that context could range from arrangements concerning the flight of the bombers - plainly jure imperii - to ordering milk for the base from a local dairy or careless driving by off-duty airmen on the roads of Suffolk. Both of the latter would seem to me to be jure gestionis , fairly within an area of private law activity. I do not think that there is a single test or "bright line" by which cases on either side can be distinguished. Rather, there are a number of factors which may characterise the act as nearer to or further from the central military activity."
"a. Was the contract of a kind which a private individual could enter into?
"The applicant was not engaged in the discharge of the sovereign act of a foreign state; the US Airforce is not here to run bowling alleys. The applicant was not employed as an integral part of a military operation. We disagree with the proposition ... that because military personnel are ultimately in charge and that the facility is to provide recreational amenities to its personnel that therefore it is a sovereign act."