People will come into stores, look around, stop at items they particularly like -- and instead of carrying them to the cash register, will take photos of them, or type a description into their smartphones.
In his report, Flt Lt Cowan did mention the possibility that "a local prankster" was at work, and when contacted recently, he said the description of aliens from many witnesses "fitted exactly the type of protective suit that would be used in the event of a fire at one of the local oil refineries at Milford Haven".
Regulation Section 1.170A-13(c)(3)(ii) requires a qualified appraisal to include a description of the property in sufficient detail for a person who is not generally familiar with the type of property to ascertain that the property that was appraised is the property that was (or will be) contributed.