In considering an application for an Island custom authority for a cultural or natural resource of a protected area, the chief executive must have regard to—
(a) any advice given by the corporation applying for the authority on the significance, under Island custom, of the activity the subject of the application; and
(b) whether there is a reasonable alternative to taking, using, keeping or interfering with the resource; and
(c) the extent to which the activity will interfere with the public use of the protected area, or the part of a protected area, to which the authority applies.