Hoping someone can provide some clarification for me on this, just because my knowledge on it is nil: Do elevator system have a system log / history that is stored when interaction with the system happens? Is it possible, or worth trying, to pull logs off of the elevator system to shed light on which floor an elevator is called to, what buttons are pressed, whether to door closes and the car moves and goes to which floor? Just thinking out loud but this could have helped with the determination of whether or not someone was holding the elevator at the floor by pushing the call button, thus not allowing it to travel. Based on the information presented it was stated that she probably pushed the door hold button but at least, again if possible, would have shed some light. Just curious.