Table 2.

Survey sent to handlers (N = 50) of human remains detection dog (HRDDs).

Survey Outline	Questions
Selection
Anatomical traits considered during the selection of HRDDs	Q1: What are the physical characteristics you are paying attention to when you select a dog to train? (for each trait, select among: very important/important/not important) Size Length and thickness of the fur Ability to run Muscle mass Q2: How do you assess the physical characteristics?
Behavioral traits considered during the selection of HRDDs	Q3: What are the behavioral characteristics you are paying attention to when you select your searching dogs? (for each trait, select among: very important/important/not important) Dominant Social Curious Dynamic Player Independent Obedient Adventurous Q4: How do you assess these behavioral characteristics?
Training
	Q5: What kind of training do you perform? Punishment (including take off the toy). If yes: What kind of punishment? (electric shock/strike/other) Reward. If yes: Which kind of reward? (Toy/vocal encouragement/food/clicker/other) Q6: What is the duration of a training session (in minutes)? Q7: What kind of training aids do you use? Compress with human cadaveric fluids Compress introduced in a container with human organs and/or blood Compress with animal cadaveric fluids Clothes wear by human cadaver Gravesoil Commercial kit Q8: Could you describe your trainings? Q9: If you use biological training aids (compress with cadaveric fluid, gravesoil or clothes…), can you describe how you obtain the final trainings aids?