51. (1) Each of the following persons shall co-operate with and provide every assistance to the Agency in the performance by the Agency of its functions relating to the relevant public land owned by the body:

(a) where a relevant public body is a body corporate, each director, manager, secretary or other officer of the body;

(b) each member of staff of a relevant public body.

(2) As soon as practicable following a request in that behalf by the Agency, a relevant public body shall, in relation to relevant public land owned by the body, furnish to the Agency any information, records or documents requested by the Agency.

(3) Without prejudice to the generality of subsection (2), the Agency may request information including—

(a) an analysis by the relevant public body of whether the retention of relevant public land owned by the body is necessary for the performance by the body of its functions,

(b) information regarding current and previous use of the relevant public land concerned, and

(c) information regarding the costs incurred by the relevant public body in using or maintaining the relevant public land and any profit or loss made by the body in that use or maintenance.

(4) The Agency or any person on behalf of the Agency may, by arrangement with a relevant public body concerned, enter, with or without such equipment as the Agency considers necessary, on any relevant public land at all reasonable times and may there carry out such surveys, inspections, tests and examinations and take such measurements and such samples of soil as may be necessary for the performance by the Agency of its functions.