Total invasion of privacy by insurance companies

Just how far will insurance companies go to look for 'dirt' on a plaintiff? Just how invasive can they be?

Here's an excerpt from a so called independant medical exam where the claimed injuries are a  broken ankle and a broken clavicle.

Why in the world has the defense attorney hunted down and passed to an orthopedist records of when the plaintiff gave birth to her child 30 years ago?