The sandal had been in the vault for eight months. The dog then entered a room where a lineup had been composed. The dog promptly walked up to Gates and placed his head on Gates' lap. And that the dog was placed on the trail within the period of his efficiency. In this case, even if the evidence supplied by the dog was inadmissible, there was more than enough evidence to convict Gates.
Suspect flees from police by vehicle, then by foot into a wooded area.
A police-tracking dog is brought in to recover the evidence. The dog recovered the suspect's clothing and suitcase hidden in the woods. These items were connected to the defendant through a qualified police-tracking dog and by positive identification of a state trooper. Suspect Warren flees on foot. The dog tracked the suspect four and one-half blocks, to the east, to his parked car.