Students were held in classrooms and the school was placed on lockdown while a police helicopter and canine team searched the surrounding area.

The search for the girl, Sara Anne Wood, has involved 150 troopers, 40 investigators, canine and scuba teams, two helicopters and an airplane.

Canine Unit or K-9 Unit consists of 6 individual officer and canine teams.

He sat up straight with excitement as the television cam era caught a shot of the rescue workers and canine teams on the edge of the mine.

Since 9/11, the department has expanded in size and has ramped up dramatically its counter-terrorism capabilities, adding canine teams and emergency services officers.

The 16 police canine teams have completed 14 weeks of training.

Then, just before the President's arrival, a canine team would be dispatched to sniff out anything unusual.

They, too, would go through the Secret Service's screenings, including visits by the canine team.

As of June 2008, the TSA had trained about 430 canine teams, with 370 deployed to airports and 56 deployed to mass transit systems.

By the early 70's, only one canine team remained.