Cueing and Probable Cause: Research May Increase Defense Attacks on and Judicial Skepticism of Detection Dog Evidence
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|Summary:
The Supreme Court has recognized the uniquely non-intrusive nature of a canine sniff means that using dogs in certain situations does not involve a search. This has encouraged the use of detection dogs in law enforcement, and limited the costs associated with producing evidence of canine alerts in court. Nevertheless, the Supreme Court’s decisions do not mean that any claim that a dog may have alerted can justify a further search, and courts have recognized that a dog must be reliable for an alert to have this consequence. Thus, a high level of reliability must be expected of a canine team, and a failure to conduct adequate training or maintain complete records to establish that reliability will not exclude the possibility that a called alert may actually have been cued, precluding the use of the alert at trial.
The Supreme Court has recognized the uniquely non-intrusive nature of a canine sniff means that using dogs in certain situations does not involve a search. This has encouraged the use of detection dogs in law enforcement, and limited the costs associated with producing evidence of canine alerts in court. Nevertheless, the Supreme Court’s decisions do not mean that any claim that a dog may have alerted can justify a further search, and courts have recognized that a dog must be reliable for an alert to have this consequence. Thus, a high level of reliability must be expected of a canine team, and a failure to conduct adequate training or maintain complete records to establish that reliability will not exclude the possibility that a called alert may actually have been cued, precluding the use of the alert at trial.