as far as lying about her background, criminal background checks are par for the course in this line of business. anything drug related ever, or anything indicating a propensity for lying are automatic disqualifications.
Background checks obviously didn't figure out that she was lying the first time. Why should we trust them a second time?
i think you're somehow confused about the core concept of a background check.
i think also that you've got a bone to pick, and you're trying to figure out who it is with. good luck there, little buddy.
I don't know why you think I have a bone to pick... You seem a little annoyed that I am responding to something that you did not mean to be your primary point. You are going to have to find a way to cope with that.
The risk posed by allowing her to walk free in society is too great; she should be indefinitely detained.