1. A radio frequency identification system comprising a load transporter having a load receiving space for receiving a radio frequency identification tagged item with a first tag that is moved to the load receiving space; a radio frequency identification reader system for taking one or more tag readings during movement of the true tag along a path to the load receiving space; and a processing system that compares tag motional data based on the one or more tag readings with tag motional information relating to movement of the first tag along the path to establish whether the one or more tag readings represent a tag moving along the path to the load receiving space.