9. Scaling wall.

10. Going ahead. The guide walks across the trial ground with the dog at

heel. On command the dog runs ahead in the direction given to a distance

of about 30 yards. He shall “drop” immediately on command and stay there

until told to rise.

11. Lying down. The dog is shown free in this exercise and immediately

on command he must rise and go away.

The detective work is conducted as follows:

1. Searching for objects left by a stranger at the end of a trail of 250

yards long and half an hour old. The trailer proceeds on a track,

directed by the judge, walk at his natural pace and at the end of the

trail stand still for one minute, wipe his feet well on the ground,

place the object between his footprints and then take the shortest cut

to a place again directed by the judge. An interesting variation of this

is provided by the object being placed thirty yards away from the end of

trail and at right angles thereto.

[Illustration:

_Police Dog Scaling Fence 8 ft. 6 in. High_

]

2. Search for object left by a stranger on a trail 500 yards long, and

barking at the trailer when found. This is done both with the dog free

and also when on leash ten yards long, and it is particularly desirable

that the dog be taught to bark on finding the object or person

discovered.

The protective work comprises:

1. Scouting over ground and barking at any large object found. The dog

follows the direction indicated by the guide and covers the ground

carefully, searching every nook and corner not so as to encircle the

guide at a short distance. Three hiding places are provided. As soon as

the dog finds the hidden person he is taught to watch him and by barking

attract the guide’s attention.

2. Transporting “prisoner” without nipping. When found, the dog follows

behind the “prisoner” quietly without barking or nipping. Any object

dropped inconspicuously must be picked up at once by the dog and brought

to the guide, then continue the transport without waiting for the

command. If the “prisoner” attempts to escape, or attacks the guide, the

dog must attack him immediately, without waiting for command to do so.

During these attacks the “prisoner” shoots twice into the air.

Dogs of all nations a complete work, profusely illustrated, bearing on the world's different varieties of the dog, grouped under their several nationalities, with descriptive matter explaining the characteristics and utility of each · 第 208 / 277 题