Fergus O'Dowd (Louth, Fine Gael) | Oireachtas source

We will certainly take up Mr. Knupfer on that suggestion, if the committee agrees. We will visit at the appropriate time and in the appropriate manner, which he might specify.

The light detection and ranging, LiDAR, survey, which is carried out by aeroplane, can detect the presence of metals and differentiate the terrain under the surface to a not-insignificant depth. Could such a survey help?