children that require a child seat [under 1.35m tall and under 12] will not be able to sit in the rear sideways seat of a defender csw if it is fitted with seatbelts - if there are no seatbelts the child can sit in the rear providing they are 3 or over - so those with a defender like me fitted with belts & lots of ankle biters , can either buy a new one , or buy one before seat belts were fitted