Behavior taxonomy

Dog maintains nose contact with ground/scent trail, working the scent rather than air-scenting or visually tracking.

Dog engages the tracking scent pad at the start of a track, commits to the scent, and departs in the direction of travel.

Dog commits to the scent trail from the K9E scent pad, departs in the correct direction of travel, and works the track with nose-down commitment.

Dog works a track over the L1 length (approximately 200-400 m) with nose-down commitment, on standard L1 terrain.

Dog works turns in a track, committing to the new direction of travel without over-shoot, cast, or handler cue.

Dog commits to and works a track that has been aged per L1 specifications (aging window defined per §9.2).

Dog encounters an article on the track and offers the handler-declared indication (sit, down, stand, or active alert), sustained until handler retrieves.

When a dog loses the track scent, the dog casts, re-orients, and recommits to the correct direction of travel, with handler support via line management.

Handler manages the long line (15-30 ft per §4.2) with appropriate tension, reads the dog's body language, and provides support without over-cueing.

At track's end, dog locates and indicates the missing person (track layer with K9E branded end marker) via declared indication style.

Composite: scent-pad start, sustained tracking over L1 distance and turns, article indication at multiple articles along the track, missing-person location and indication at track end, sustained handler skill and safety preparedness throughout.