CUPD welcomes 2 explosive detection K-9s: Dax and Harlo
The CU Boulder Police Department (CUPD) has expanded its team with two new four-legged officers: Dax, a black Labrador retriever, and Harlo, a golden Labrador retriever. These energetic and highly trained explosive detection K-9s are already making their presence known across campus, keeping the campus community safe by sniffing out potential threats all while bringing smiles to students, faculty and staff.
Dax and Harlo are both just under 2 years old and have undergone rigorous training to prepare for their roles. Explosive detection dogs are selected for their curiosity, drive and ability to focus in high-stimulation environments. Their training involves learning to detect a wide range of explosive materials through scent, often using real-world scenarios to simulate the types of environments they’ll encounter on duty.
“These dogs are trained to sniff out suspicious packages and items, especially around campus events,” said Officer Bianca Sipres, Harlo’s handler. “Harlo is very energetic and still very much a puppy. He loves attention and meeting people, but when he’s working, he’s all about sniffing and keeping our campus safe.”
Officer Ryley Davis, Dax’s handler, echoed the importance of curiosity in a K-9’s temperament.
“We look for dogs that are going to seek things out, and that’s exactly what Dax does,” Davis said. “You’ll see him sticking his nose in all sorts of places, investigating and doing what he’s trained to do.”
The journey to becoming a K-9 handler is highly competitive. Officers Sipres and Davis underwent a rigorous selection process, including interviews, evaluations and specialized training to ensure they were the right fit for this critical role. Their dedication and connection with their K-9 partners are evident in their interactions on campus.
When you see Dax or Harlo on patrol, expect to see a lot of sniffing—it's their way of working. But don’t be shy. Both dogs are friendly and love meeting people.
“Don’t be afraid to come ask us questions or even just to come meet Harlo,” said Sipres. “He loves to meet people.”
Davis added, “Feel free to come say hi and give Dax some pets. He loves the attention, and he’s a friendly dog.”
With Dax and Harlo now part of the CUPD team, the department is better equipped than ever to ensure the safety of the CU Boulder community—one sniff at a time.