1. An animal training method to train an animal to detect a training odour, the animal training method for practice by a supervisor, an animal handler, and an animal, the animal training method comprising: placing a target in a location of a search area, the target comprising a training odour and a hidden marker, the placing being carried out by the supervisor; introducing the animal handler and the animal to the search area; scanning, with a detector comprising an electronic emitter, a candidate location for the hidden marker, the candidate location being a location that is indicated by the animal; rewarding the animal if the detector indicates the presence of the hidden marker at the candidate location.