6   Identification of wilderness

(1)  An area of land shall not be identified as wilderness by the Director-General unless the Director-General is of the opinion that:

(a)  the area is, together with its plant and animal communities, in a state that has not been substantially modified by humans and their works or is capable of being restored to such a state,

(b)  the area is of a sufficient size to make its maintenance in such a state feasible, and

(c)  the area is capable of providing opportunities for solitude and appropriate self-reliant recreation.

(2)  In forming an opinion under subsection (1) the Director-General may consider any relevant circumstance, including:

(a)  the period of time within which the area of land could reasonably be restored to a substantially unmodified state,

(b)  whether, despite development which would otherwise render it unsuitable, the area of land is needed for the management of an existing or proposed wilderness area, and

(c)  any written representations received by the Director-General from any person (including a statutory authority) as to whether the area of land should be identified as wilderness.