Change in state law brings an uncertain future for Ohio’s drug dogs, who can’t be retrained to stop reacting to marijuana and hemp, which smell identical.
Can you teach an old dog new tricks? And is it worth it to try?
Those are questions police departments across the state will be forced to ask themselves, now that Ohio’s new hemp-legalization law has cast a cloud over drug-sniffing dogs’ ability to provide “probable cause” to conduct drug searches.
Because marijuana and hemp are both from the cannabis plant and smell identical, dogs can’t tell the difference, so both the Ohio Highway Patrol and the Columbus Division of Police are suspending marijuana-detection training for new police dogs to uncomplicate probable cause issues in court.
“The decision to stop imprinting narcotic detection canines with the odor of marijuana was based on several factors,” including that the “odor of marijuana and the odor of hemp are the same,” said Highway Patrol spokesman Staff Lt. Craig Cvetan.
Once a dog has been trained to detect a certain narcotic, they can’t be retrained to stop reacting to that odor, Cvetan said. As for the 31 narcotic-detection canines currently deployed by the patrol, “we are evaluating what impact the hemp legislation may have.”
Most dogs are trained to hit on more than one drug — including heroin, cocaine and methamphetamine. But they react the same way no matter which drug they smell, Cvetan said.
That means officers have no idea if the dog is hitting on legal hemp or heroin, said Dan Sabol, a Columbus criminal-defense lawyer.
“It’s very problematic for probable cause,” Sabol said.
Sabol compared the situation to a dog trained to detect both illegal drugs and fast food, with police using any dog hits on either as the probable cause to search someone on suspicion of illegal drugs.
“Do you think that would be sufficient to conduct a search?” Sabol said. “Of course not.”
The Fourth Amendment to the U.S. Constitution establishes the “right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures,” requiring probable cause, or sufficient knowledge to believe that someone is committing a crime, before police can conduct a search.
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“From a practical standpoint, (marijuana) is the vast majority of hits,” Sabol said. “That’s the most commonly used drug of abuse — or maybe not of ‘abuse,’ depending on the circumstances now.”
Those new circumstances include that about 45,000 people in Ohio have received a recommendation from a doctor to use medical marijuana.
In a memo sent Wednesday to his officers, interim Columbus Police Chief Thomas Quinlan said the department’s “K-9 units will be releasing new policies and procedures so we limit hits on cars that might be THC based. I had already directed the next 2 K-9s we train will not be certified to alert on THC.”
