Lorry operators could not be permitted to transport even crusher dust, a product of the stone mining industry, to any place much less to other States without a valid transit permit, the Madras High Court Bench here has held.

Justice D. Hariparanthaman passed the ruling while dismissing a writ petition filed by a road transport company owner to forbear the government as well as police officials in Tirunelveli district from preventing the transport of crusher dust to Kerala.