There seems to be no alternative but to conclude that [crop circle] investigators have adopted a policy of disinformation about the circles that amounts to a conspiracy. Circle perfection has been exaggerated, and the ease with which they may be made has been played down.
A number of examples of hoaxed circles that reportedly fooled veteran crop circle researchers Busty Taylor, Terence Meaden, and Pat Delgado are presented. Hoaxing methods are also described.
In summary, the evidence is now better than ever that there is no feature of any known circle that cannot be produced by hoaxing. However knowledge of hoaxing is not by itself enough, for at least equal importance is some understanding of the psychology of practical jokers. At present it seems that this understanding, which need not extend to approval, is widely lacking, and that this is the crucial factor preventing the hoax hypothesis from gaining the acceptance it deserves.