Figure S3. Grade 1 — hidden target. 



Surround its lower part with chunks of dead- 

 wood (fig 35). 



55. Tripwires— Grade 1 (Table 2) 



Tripwire lanes should consist of five to ten white 

 strings stretched across the lane about 12 inches 

 off the ground. The strings should be 5 to 15 

 meters apart. 



56. Practice 



Before working their dogs, each handler should 

 be given a selection of ordnance items and allow- 

 ed to practice planting grade 1 targets in each 

 of the four modes of concealment. The instructors 



should then inspect and critique each lane. Typi- 

 cal deficiencies are : 



a. Overconcealment. 



b. Setting targets in a pattern, rather than 

 at random. 



c. Setting targets on the downwind side of a 

 lane 



57. Procedure 



a. Each team should run at least two ordnance 

 and two tripwire lanes per day. 



b. Handlers should set each other's lanes. A 

 handler should not run his dog on a lane he has 



39 



