GREENSBORO, N.C. -- The Greensboro Police department introduced its two new officers... of the 4-legged kind.

Meet 10-month-old Sully -- and Sully's half brother, 21-week-old Karson. They're getting trained to become K-9 officers.

Both dogs will soon undergo certification by the National Police Bloodhound Association.

10-year-old tracker Bo is showing Sully and Karson the ropes. Bo has been with Greensboro Police for seven years and is expected to retire this year.