Mr. MacKenzie apologized for speeding and promised to slow down. Unfortunately for Mr. MacKenzie, things took a bad turn because the police officer dealing with him made a number of the observations that would culminate in the officer deploying his drug-sniffing dog. The officer believed that MacKenzie might be involved in an offence under the CDSA. The officer observed that:
- MacKenzie’s hands were shaky—trembling when he handed over this licence and registration.
- He was sweating—beads of sweat were forming on his forehead.
- His breathing was very rapid and his carotid artery was pulsing very rapidly. This rapid breathing did not decrease even after he used his asthma medication. Indeed, his nervous reaction continued even after he was advised that the reason for the investigation was minor speeding infraction.
- This level of nervousness was extremely high given the nature of the investigation.
- The pinkish colour of MacKenzie’s eyes was suggestive of possible marijuana use.