Who else would sit next to her attorney but Crystal? I don't understand what you're saying there.
Haleigh isn't lost IN THIS. She's been taken from her family. THIS issue is ancillary to the disappearance of Haleigh. Since arriving in Satsuma, Crystal has learned things about her children's living arrangements, not the least disturbing of which that they sleep in the same bed with an adult male and a teen aged girl, often have dirty blankets, are sleeping on a mattress on the floor when there is a perfectly good bed frame available in a bedroom across the living room (thus being exposed to drafts), that they are living in a home that has "laundry laying on the floor all the time" and certainly most important, that people are telling her that they have information that the children have been physically harmed. It is this last that seems to have sparked the investigation which, by LE statements to the news, was investigated at least THREE TIMES in the past, as well as Ron admitting that he spanks his children like DFS told him he could (which says that he had to be TOLD how to appropriately discipline his children in the first place). If there is smoke, there is fire, and Crystal HAS to take action now, despite the fact that her daughter is missing, since she has no way of knowing whether her daughter disappearing has anything to do with any of these things and her son is still in that environment.
If the stories Crystal has been told (but people seem to think she's made up) are false, then that will be determined by DFS. But to do nothing when met with all that information would be more suspect in my mind than her comment about not knowing whether she passed a lie detector test.