The bloodhound is the only breed of dog whose evidence is admissible in US courts. The bloodhound, originally bred as a hunting dog, has been used in court systems dating back to the Roman period. A single bloodhound has 230 million scent receptors lining their nose; whereas the German Shepard has only 225 million scent receptors, and humans have five million. Due to their ability to pick up scents, bloodhounds have been known to trail individuals for several hours to several days.
More about law enforcements animals:
- Currently the only animals used by law enforcement are horses and dogs. Unlike dogs, which are used to trail suspected individuals and drug or explosive searches, horses are used to maintain safety and security in large crowds.
- Police dogs must remember several hand and verbal commands.
- The most common breed used by law enforcement is the German Shepard followed by the Dutch Shepard and Belgian Malinois.