Nancy Carlin gives her dog Duco a treat trying acquaint the dog with her commands.
Kristy McConnell puts a pinch collar on Quint, a dog in training. The collar gets the dog's attention by making a light pinch around its neck.
Kristy McConnell works her dog Quint through a search routine, sniffing out the sent through holes in different items along a wall. As the dog makes a hit, its given a rubber ball or toy is given as a reward for the find.
Tom Brenneman instructs Nancy Carlin, of the Las Vegas K-9 unit, how to get her dog Duco to follow voice commands.
Brent Carlin of the Las Vegas K-9 unit wears a heavy padded suit to protect himself as Kristy McConnell works Quint in a search and bite routine.
Tom Brenneman, left, watches trainers Mase Huggis of Topeka and Brian Arnold, far right, while Bret Carlin of the Las Vegas K-9 practices a life-like scene with a dog in training.
Tom Brenneman, left, tells Tracy Dickerson the routine as she gets ready to work a dog named Ali-Baba.
Tom Brenneman works close with Brent Carlin on controlling the dog by voice command while Richard Jones of the Grandview police department looks on.
Brent Carlin tries to get away from a dog as the it clutches onto this arm for the bite and hold.
Tom Brenneman gives some words of advice as he instructs a handler how to walk the dog through its routine in sniffing out drugs or bombs.
A lab looks inside a box specially designed to train dogs to detect certain scents.
A work board is set up every day to tell every trainer what each dog is being taught that day.