Spies are engaged in unsightly work, and they are alone, but they also have to inquire about intelligence and carry out abnormal activities, and the danger is naturally extremely high, so in order to guard against spies, countries naturally have a very meticulous and systematic way of investigation. After spies are caught, there are often two endings, one is to be repatriated or imprisoned after cooperating with the confession, and the other is to refuse to cooperate, and what awaits them is bound to be a dead end.
However, there are very few spies who will be developed into double-sided spies because of various factors, in fact, this has long been recorded in the ancient Chinese "Thirty-Six Plans", which is the famous "anti-inter-plot". However, this "anti-plot" is easy to say and extremely difficult to do; as a spy, in addition to strong action, meticulous thinking, and strong adaptability, there are two necessary requirements - that is, loyalty and willpower.
Loyalty is needless to say, this is the most basic requirement; and willpower, is that each organization will focus on the special training of spies, in order to prevent defection, the former Soviet union famous spy Sorge, because the organization member Miyagi Yutoku can not withstand the interrogation, resulting in the arrest of all members of the group. Germany during World War II naturally cultivated a large number of spies, and here is the story of one of the "legendary" spies.
The spy, named Wulf Schmidt, was originally a law student at the University of Lübeck, and after reading the book "Mein Kampf", became a fanatical supporter of Adolf; and was later selected to become a spy, when Germany was ready to launch an attack on Britain, before the attack, it was necessary to send spies to investigate the situation, so the German intelligence service conducted a comprehensive training of a group of candidates, including language and espionage skills.
Schmidt was the most perceptive and well-known of the trainees, so he was selected by the person in charge at the time to become a spy sent to Britain. After that, he boarded a German military plane under the pseudonym Harry Williamson, and yes, due to the tense situation at that time, it was difficult for him to sneak into Britain from normal channels to carry out operations, and the German army was ready to let him parachute in so as to avoid the inspection of the relevant British authorities.
The idea is very good, but the British naturally have a large number of spies in Germany, and they have long known the german plan to prepare airborne spies, and even the time and place are clear; although due to various factors, Schmidt did not land at the intended location, but the deviation was not very large. Shortly after the parachute, he was captured and quickly sent to MI5.
In fact, after the German Intelligence Department identified him as a spy sent to Britain, the British MI5 conducted a detailed investigation of him, and felt that he was at most seduced by Adolf, and as long as his thinking was corrected, he was still a "material that could be made". It is true that although Schmidt was specially trained, he was not afraid of the interrogation methods at all, and he could be dispatched, which was enough to prove that Schmidt was a stubborn and strong-willed man.
But since michitta wanted to take him down, naturally they had conducted a very detailed investigation of him, and they told Schmidt that his companions had betrayed him, and Schmidt saw that he could not hide it, so he recruited everything; then MI5 told him that as long as he cooperated, it was naturally best not to kill him, and it was natural to live, so Schmidt agreed to MI5's request; as a result, under the step-by-step planning of MI5, Schmidt fell deeper and deeper, until he became a staunch double-sided spy.
Under the arrangement of MI5, Schmidt provided a large amount of true and false intelligence to the German intelligence service, of course, those true intelligence were specially handled, and all of this, the German intelligence service was ignorant, not only provided Schmidt with a large amount of funds, but also prepared to award him the First Class Iron Cross as a reward; of course, many of those funds were laughed at by MI5, and Schmidt was also happy, and he did not have to spend all day worrying about it.
During these times when he was a double-agent, Schmidt returned to the German intelligence service several times, after all, he never came back to show his face, which would cause suspicion; every time he returned to Germany, MI5 would be nervous for a long time, afraid that he would turn again or be discovered by Germany, fortunately, Schmidt behaved perfectly, until the end of World War II, the German side never doubted Schmidt, and even regarded him as the "pearl" of spies, which was really a bit ironic.