Armoured machines with various forms of earth removing equipment, rotating chains and the like are driven over the minefields. The machines reveal, destroy, and/or explode mines lying in the ground. Different follow-up techniques to assure that the land is safe for the end user are then applied, from visual investigation to a follow up sub-surface search depending on the situation in terms of terrain, vegetation, type of mines/explosive remnants of war (ERW ). Machines are effective in suitable areas, and have proven extremely useful both for systematic and targeted investigation in Technical Survey ( TS ). The development of machines has progressed from heavy military equipment to lighter, more flexible civilian machinery.