7. After section 62 of the Principal Act the following section is inserted:
“62A. (1) The Conservator shall not grant a permit authorising excavation in a wilderness zone unless that excavation is for the purposes of an archaeological investigation.
“(2) The Conservator shall not grant a permit authorising excavation in a wilderness zone for a period exceeding 12 months.
“(3) Where a person applies for a permit to pick plants for the purposes of an archaeological investigation in a wilderness zone, the Conservator shall not grant that permit unless she or he also grants a permit to that person authorising excavation for the purposes of that investigation.”.