Imagine a military engineer who has acquired a front-line, or even right at the site of a recent battle, a model, with the appearance of an enemy shell, distinguished by some kind of unusualness and novelty. First of all, only special knowledge, a sharpened sense of the new, a special reaction could allow the choice of this particular model of the projectile. Well, then, in order to penetrate its design, the secret, it needed to be disassembled, analyzed. But he is completely unknown! And what if this shell has already flown out of the gun barrel, but for some reason did not explode? And if it is a bomb or a mine with an already cocked clockwork? What is the share of risk in such cases, or rather, not a share, but simply a risk? And these are just separate options for a daring search for NEG members, a search that remained nevertheless deeply scientific, engineering, completely devoid of adventurousness and bravado. It is not for nothing that during the entire existence and activities of the NEG, none of its members has ever been even seriously injured, not to mention the more tragic consequences of their extremely dangerous work. After all, the truth "Sapper makes mistakes only once" had the most direct relation to the group.