Where in a cantonment any building, or wall, or anything affixed thereto, or any well, tank, reservoir, pool, depression, or excavation, or any bank or tree, is in the opinion of the Chief Executive Officer, in a ruinous state or, for want of sufficient repairs, protection or enclosure, a nuisance or dangerous to persons passing by or dwelling or working in the neighbourhood, the Chief Executive Officer, by notice in writing may, require the owner, or part-owner or person claiming to be the owner or part-owner thereof, or, failing any of them, the occupier, thereof, to remove the same or may require him to repair, or to protect or to enclose, the same in such manner as the thinks necessary; and, if the danger is, in the opinion of the Chief Executive Officer, imminent, he shall forthwith take such steps as he thinks necessary to avert the same.