A 9-year-old police dog named Rex is ready to retire from the force. That presents a quandary for the Albuquerque, N.M., police department: what to do with a devoted and capable dog whose law enforcement training makes it a challenge to find him a new home? In announcing Rex's retirement Monday, the department also outlined a sad story. The dog's handler recently retired from the force — and though the two have emotionally bonded, the officer couldn't take his work partner home because he has a small child.