Casey Kelly doggedly refuses to sit still for the camera. He squirms, he wiggles, he wags his tail.

His impatience is not surprising. At 10 weeks, he would rather wander off to inspect the cars, the people and nearby fields than pose for a photographer.

But such behavior will not be tolerated for long. Casey Kelly is a member of the Corps now -- the Fairfax County Police Department's elite K-9 Corps.

Kelly, as his new owners will call him, is the latest recruit to the police department's special 10-member dog search team. The dogs, all of them about 100-pound German shepherds, are used to help police search for missing persons and look for burglars or trespassers hiding in buildings or warehouses.

Kelly, a purebred German shepherd, was donated to the police department by the Fidelco Guide Dog Foundation, of Bloomfield, Conn., which trains guide dogs for the blind.

The puppy was brought to Fairfax County as a result of a story in The Washington Post that said the police department needed more dogs in their canine unit.

Charles Krohn, a representative of the Kaman Corp., which established Fidelco, saw the story and arranged for Kelly to be given to the department. Police officials said Fidelco flew Kelly down in its corporate jet July 16 and presented him to the police department the next day.

"This is the first dog we have ever raised from puppyhood," said Warren Carmichael, Fairfax County Police Department spokesman. "We usually get them when they are full grown."

Officer S.G. Bailey, the department's special K-9 unit trainer, will raise Kelly at his western Prince William County home until the dog is about 1 year old.

At that time, Bailey said, Kelly will be matched with his future police partner, who will train and house the dog. Bailey said the county will pay for all of Kelly's food and supply the officer with a back-yard kennel.

When Kelly is old enough, he will be put through a 14-week program that will teach him obedience, agility skills, attack training and scent work for searching buildings. Bailey said Kelly will work eight hours a day, five days a week to prepare for his career as a police dog.

Maj. Kelly Coffelt, commander of the department's operations support bureau -- and who shares honors as Kelly's namesake with Police Chief John E. Granfield's 7-year-old daughter -- said the puppy's personality and possible physical deformities, such as hip dysplasia, a hip problem common to German shepherds, will be closely watched.

"Because of temperament and possible physical problems, you never know if a dog will be suitable until you start to train them," said Coffelt. If Kelly "washes out," Bailey said, "Fidelco will probably take him back."

Kelly will be trained at the police department's K-9 training school in western Fairfax to scale ladders, climb through windows, jump over holes and ditches and protect his partner from attack.