a dog trained to assist the police.
Origin of police dog
First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for police dog
Historical Examples of police dog
For example, he can't bear dogs, because once a police-dog took him for an ordinary thief.Ditte: Girl Alive!
Martin Andersen Nexo
a dog, often a German shepherd dog, trained to help the police, as in tracking
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012