Modular training
Short, simple lessons which work on one facet of a finished product.
To search thoroughly for trained odors.
Hard/easy- (hard search, easy find) the canine works for a long time and when source is located the canine is rewarded quickly after indicating.
To indicate the presence of trained odors.
Easy/Hard- (easy search, hard find) the canine has an easy/short search but must indicate for a long time before being rewarded.