Dogs that are a part of the K9 unit are rightly considered to be police officers and are treated with the same respect as a regular policeman. When K-9 dog Sultan joined forces with the Yarmouth Police Department in Maine, he quickly became a part of the team. The dog served his country for more than a decade during which time he helped solve many cases, thus gaining the love and respect of all his teammates. The video below shows the heartbreaking moment the dog gets put down after a long career. Police officers from all around the country gather to say goodbye.