Lawyers, priests, doctors, and psychologies who is all under strict confidentiality sometimes has to break that rule of secrecy when particular crimes is heard or observed. It doesn't matter how classified the conversation is, or the medical records. If they show child abuse, they must break the confidentiality and call the police.
The system has not broken down yet, even if those people has to make their own judgement calls when to break confidentiality. It is enough that they just suspect that a child might be in danger.
Shouldn't army personal who not only suspect, but can prove illegal activities be under the same scrutiny?