[lftl]

I think it depends on what phase you're in with regards to leaving. If at the very beginning of the investigation, after the first visit from DFS, they had left for France I imagine this case would have simply been forgotten. They hadn't been charged with any crime, so they're not legal fugitives in any sense. They may never want to return to that particular state on the off chance someone from DFS who remembers the case notices them, but I imagine even that to be a very slim possibility. Even later in the case though, I'm troubled to think of a law they're breaking by simply moving to another state.

If I'm ever in a situation similar to this, I will heavily weigh moving, or at least sending my wife and kids out of state, before entrusting my family to a random bureaucrat.