Abstract: An auxiliary safety harness, suitable for use by a child sitting on a vehicle seat provided with a releasable lap belt, has a pelvic guard positionable to extend laterally across the front pelvic area of the child and a portion which extends downwardly between the child's legs. The pelvic guard has at least one retainer loop through which the lap belt can pass to retain the pelvic guard in position when the lap belt is fastened. A flexible connecting portion extends from the downwardly extending portion of the pelvic guard to an upper end portion whereby, in use, the flexible connecting portion can be positioned to extend between the child's bottom and the vehicle seat and upwardly between the child's back and the back part of the seat. The upper end portion can be releasably secured to the back part of the seat.