Friend, I had more police bodies on my property than any two "family gathering' bodies combined. And we have a big family. "What ever you need to do, do it. What ever you need to take, take it."
One thing you never think about -- finger print dust is a PITA to remove. We just painted our house a few weeks prior and that stuff just embedded itself in the paint. The windows of my 30 year old truck still have the "dust" sheen on them (old glass was pitted, I guess).
They parked two mobile crime labs on our block -- one IT specific, the other finger prints and other physical evidence related. When the police returned us home after being interviewed at the local station, the shear MAGNITUDE of what resources were being expended was humbling. Think that would have happened if we acted like "privacy nazis"? Feh.
"Don't talk to the police. Ever" is just crappy advice. Police come knocking on your door and say "a little girl is missing from next door -- did you see or hear anything" and if you have information you withhold, how can you NOT be seen as being in part responsible for what happened/happens to the little girl?
In the grand scheme of things, my wife and I would much rather have faced and continue to face the challenges such an event has wrought rather than the alternative. How many parents never find out what happened to their child? How many find out from a forensics report? We consider ourselves the luckiest parents on the face of the earth. We got to plan and enjoy our daughter's birthday rather than her memorial and burial.
What happened is bad -- it's part of the story of her life now. It's our job as parents to make sure it's just a footnote and not the plot. And our daughter has proven to be incredibly strong and resilient. How can we feel "poor me" or "poor us" when our daughter can smile and have fun after such a horrific ordeal? She gives *US* strength.