UBS, a Belgian Malinois and eight-year K-9 veteran of the Hamilton County Sheriff's Office, died Wednesday afternoon.
The K-9's partner, Deputy Hank Ritter, noticed UBS was feeling sick and took him to a veterinarian.
There, according to a news release, Ritter learned that UBS had cancer. The disease had spread from his liver to his pancreas.
No surgery could improve his quality of life.
At 3 p.m., Ritter told the veterinarian to put UBS to sleep.
UBS specialized in narcotics, trafficking and apprehension. He rarely took a day off.