I tried to work to identify insider, such crap - D: D. Leaders do not draw strict boundaries of what is classified information and what is ordinary. Employees, not realizing the big difference in this, merge it both left and right, without even benefiting from it. Revealing this on a polygraph (for the fact that a person is not worried) really does not work. In this case, not the thieves, but simply anxious and suspicious employees, fall into the field of vision of the polygraph examiner. At the same time, they had to teach employees what they had to tell the security service or the head himself. : D