The Espionage Activities, Schools and Preventation of Ottoman from Those Activities in World War One (WWI)

It is sure that espionage is like an inscrutable box and has its own complex structure, so that some parts can still be unknown through researches. This is nature of espionage. But still, espionage has some common points and instruments. What ever the content is, a spy will gather informations according to some rukes and will need an intelligence source. Even in WWI although the spies applied different tecniques, they also knew the different tecniques that were applied by different spies. In espionage activities according to duty and region different tecniques were applied. These tecniques took form according to the success of spys education