I have no valid explanation for you as to why they were doing it. They basically said that they had no obligation to tell me because I was a junior officer, but I explained to them that what they were doing was a criminal offence.
With my 12 years of experience in that unit, I cannot explain to you why they were doing it. The explanation they provided to me made no sense. I challenged them on it, and I verified their doings. It was not valid.