Oh my goodness, I feel angry for you/your sister reading this post as I have low tolerance for this kind of injustice towards innocent families. I mean bitching over a bloody bed sheet? Jesus. If they were to intrude on ANYONE's home then they'd find something to knitpick on, wouldn't they? I know they have to do their job and be thorough but this is ridiculous. As you say, focus on the people who "are" doing the neglecting. I hope your sister will get through this ok. Are there any clues as to who might have done something like that and the motive?