Crash investigators do this for a living?

Sorry to hear about the accident, glad to hear she's doing better.
Sad to hear about how the authorities are handling it.
I would be at the lawyer's office asap to sue the people or district involved.
She may seem like she's healing up well now, but down the road a few years, she might have complications from her injuries.
Keep in mind, that it wasn't her fault, and someone is liable............