I have tried to translate the Danish MH-Test card to English, as I think this will give you a good idea how this works
Doll = human size doll, attached to a pulling system so it can be hidden behind a bush and quickly be pulled up.
Ghost = figurant with a white sheed over his head with holes for his eyes(makes it impossible for the dog to read his bodylanguage).
Person refered to in this test is a figurant in normal clothes(not clothes for defence).
The whole test takes about 45min. to 1 hour for each dog, at some parts of the tests the dog must be on a 10-20 meter long leash.
....I could not upload the card ??? I try in a different way !
Greetings Rolf