As I already said, there is no way Hillary could break the law as an OCA, she is the last authority on what's classified and what's not for anything within the state department.
We were talking about Huma but considering that she forwarded an email she received on her state department email account (which is unclassified) and forwarded it to her Yahoo account (another unclassified account), what exactly is the crime here? That she emailed an unclassified email to another unclassified email account? How is that possible? Secure doesn't equate as classified.