An inspection system for screening an object under inspection, and configured to be transported on a trailer of a vehicle, comprising: a container with four walls, four corners, a ceiling and a base that defines an enclosed volume, wherein in a stowed position said container rests on the trailer portion of the vehicle; at least one radiation source, in particular an X-ray source, positioned within said enclosed volume, wherein emissions from said radiation source define a field of view; at least one detector array positioned within said enclosed volume or physically attached to said container; characterized by further comprising: a piston positioned in each of said four corners, wherein each piston is configured to move horizontally from a retracted state to an extended state; and four legs, each of said four legs attached to a respective said piston at each of the four corners, wherein each of said four legs is adapted to be horizontally extendable outwards from a respective corner and retractable into a respective corner based on movement of the attached piston, wherein each of said four legs is extendable vertically downwards, when extended outwards, so that said legs are in contact with the ground to thereby lift said container off from the trailer portion, and vertically adjustable to at least one height position from ground level, wherein said at least one height position is determined using a plurality of data. a container with four walls, four corners, a ceiling and a base that defines an enclosed volume, wherein in a stowed position said container rests on the trailer portion of the vehicle; at least one radiation source, in particular an X-ray source, positioned within said enclosed volume, wherein emissions from said radiation source define a field of view; at least one detector array positioned within said enclosed volume or physically attached to said container; characterized by further comprising: a piston positioned in each of said four corners, wherein each piston is configured to move horizontally from a retracted state to an extended state; and four legs, each of said four legs attached to a respective said piston at each of the four corners, wherein each of said four legs is adapted to be horizontally extendable outwards from a respective corner and retractable into a respective corner based on movement of the attached piston, wherein each of said four legs is extendable vertically downwards, when extended outwards, so that said legs are in contact with the ground to thereby lift said container off from the trailer portion, and vertically adjustable to at least one height position from ground level, wherein said at least one height position is determined using a plurality of data. a piston positioned in each of said four corners, wherein each piston is configured to move horizontally from a retracted state to an extended state; and four legs, each of said four legs attached to a respective said piston at each of the four corners, wherein each of said four legs is adapted to be horizontally extendable outwards from a respective corner and retractable into a respective corner based on movement of the attached piston, wherein each of said four legs is extendable vertically downwards, when extended outwards, so that said legs are in contact with the ground to thereby lift said container off from the trailer portion, and vertically adjustable to at least one height position from ground level, wherein said at least one height position is determined using a plurality of data.