constructed of No. 5 messhall cans by covering 

 the open end with screen wire. 



c. Components. The cricket can's wire screen 

 construction holds the components but allows 

 their odor to escape. Each cricket can should 

 contain a variety of objects simulating the odors 

 of mines or weapons. Typical components (fig 

 21) are: expended brass, blank ammunition, 

 bits of plastic or metal, gun oil, brass wire, 

 black powder, and bits of plastic explosive or 

 TNT. 



35. The Changeover 



The use of the leather, or working harness is 

 an important part of the dog's training. Most 

 military dogs learn early in their training to 

 associate wearing of the choke chain or leather 



collar with play, rest, or obedience-type training, 

 and the harness with fieldwork. The harness 

 also removes the restriction from the dog's neck, 

 gives it more freedom of action, and gives the 

 handler greater control over his dog under ad- 

 verse conditions such as difficult terrain or con- 

 tact with the enemy. It is therefore required 

 that the collar be replaced with the harness 

 prior to any field exercise. This procedure is 

 called the changeover. 



36. Noise Discipline 



From the beginning of basic detection training, 

 the mine and tunnel dog is always reprimanded 

 if it barks or whines, for any reason, while 

 working. The dog may bark or whine only in 

 the kennels, or during play, stake out, and travel 



Figure 22. Silencing dog. 



28 



