70 In Anderson, the trainer submitted that it was an extenuating circumstance that, on the evidence, he had not knowingly administered a drug. There, the applicant had given evidence that he had administered nothing to the horse which, so far as he was aware, could result in the maximum permitted level of carbon dioxide in the blood being exceeded. He mentioned, in this respect, that he had administered to the horse a substance known as MATOL KM which had been recommended to him by a friend and which, he had been told, had been approved by the New Zealand Trotting Association and which was not "swabbable". The Court rejected the argument that this was an extenuating circumstance. However, I do not read anything there said as indicating that this fact could never amount to an extenuating circumstance. Each case must depend on its own facts. However, I do not think the mere fact that the trainer did not know that the substance which he or she was administering was, or contained, a drug is to itself sufficient to amount to extenuating circumstances. At very least the trainer would have to go on and show that he or she had taken all proper precautions to become informed about the possible consequences.