was probably blood outside the tent. He collected samples but they were not tested. Lowe also gave evidence that she had brought Reagan out of the tent after the occurrence. When she was in the tent she observed a pool of blood in the tent about 15 cm by 10 cm (6 by 4 inches). However, the amount of blood was disputed. Another witness who entered the tent that night, police Constable Frank Morris, gave evidence that there were only a few drops of blood on a couple of blankets and a sleeping bag in the tent. A scientific witness located blood on the wall of the tent. Scientist Dr. Andrew Scott agreed that the spray mark of blood was consistent with a dingo carrying a bleeding baby. However, he did not believe that it was human blood. Canine hairs were located in the tent and on Azaria's jumpsuit. The Chamberlains did not own a dog. Les Harris, then President of the Dingo Foundation, gave evidence that his opinion based on years of studying dingoes is that a dingo could have enveloped the head of a baby in its mouth and carried the weight of a baby over long distances. He produced photographs of dingoes enveloping the head of a baby-sized doll in its jaws. However, forensic expert Professor James Cameron gave evidence that, based on studying plaster casts of dingo jaws, it was impossible for a dingo to open its jaws wide enough to encompass a child's head. Tourist Max Whittacker gave evidence that he attended a search later on the night of the disappearance with people including the head ranger and an Aboriginal tracker. He claimed to have been called by the head ranger to help him and the Aboriginal tracker to follow dingo paw prints and scrape marks in the sand in a westerly direction. He was led to believe they were following the trail of a dingo carrying a heavy object believed to be Azaria's body. "I now know that the Aboriginal's account of following these tracks west that night has been denied by rangers and the Aboriginal's account of this incident has not been accepted." Although expert opinion varied as to whether the clothes damage could have been caused by a dingo some took the view that it could have been. Further, marks on nappy fragments were similar to marks resulting from a dingo on