Wiktionary
k-9 unit
n. (context US English) A police dog or a police dog and its handler.
Usage examples of "k-9 unit".
Good K-9 unit, good use of manpower, good rotation procedures, good challenge and response and use of authenticators.
Another dog, a member of the Oklahoma County Sheriff's K-9 Unit named Chita, was hit by a car after escaping from her pen during a hail storm.
As it happened, there had been only three cadets in the K-9 unit at the time, but Pendergast didn’.