K9 units are specialized teams that use trained dogs to assist law enforcement in various tasks. These dogs are often trained in specific skills, such as detecting drugs, explosives, or tracking missing persons. The partnership between the dog and its handler is crucial for effective operations. The dogs used in K9 units are typically breeds known for their strong sense of smell and intelligence, such as German Shepherds or Belgian Malinois. K9 units play an important role in enhancing public safety and can be deployed in various situations, including search and rescue missions and crowd control during events.