The flagged stakes can be used to lay trails anywhere, whether it can be skewered into the ground or duct taped onto another surface or structure, especially when signaling a turn. The color is bright enough to see from a distance to give the handler confidence that his K-9 is hot on the track. It even helps with marking aged trails that were layed the day before or longer.
Human Remains Detection
The flagged stakes can be used to mark where the scent source is hidden, whether it is buried below or placed high above. This allows the handler to watch from a distance his K-9 work the area as it hones in on its exact location. He can see the shift in body language as the dog gets excitedly closer or adjust the exercise if it becomes too challenging.