Sombra's work has led to 245 arrests over the past few years.
The threat prompted officials to relocate Sombra - whose name in Spanish means Shadow - from the port of Turbo on the Caribbean coast to the capital city, where she now uses her extraordinary talent at Bogotá's El Dorado global airport.
Colombian police recently revealed that the Gulf Clan, a cartel that boasts its own guerrilla army, has offered a reward of $7,000 to whoever kills or captures the savvy hound.
Sombra, Spanish for "shadow", was trained to sniff out drugs and has uncovered so many stashes of cocaine that one of the country's most powerful criminal organizations has put a price on her head.
While Sombra is furry and friendly and fun, the death threats made against her are real-and show exactly how serious the drug war can be.
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Actually, add animals to the latter since a Colombian drug gang has reportedly put a bounty of $70,000 on a drug detecting canine.
President-Elect Ivan Duque is promising a tougher approach to speed up eradication of the drug, including aerial spraying and the use of drones.
She's been with police since she was a puppy, and has become a thorn in the side of the Urabeños, leading to the price on her head.
The Urabeños offered a bounty of up to 200 million Colombian pesos - almost $70,000 - for the canine's life, Colombia's national police said last week.
Sombra, surrounded by an extra cadre of bodyguards, is now working in Colombia's airports, where she has proven to be every bit as effective. But even with advanced technology, experts say on-the-ground detective work like that performed by Sombra is critical.