Erring on the side of caution is best for the baby, so the photo clerk did the right thing, but the investigation phase should've only taken the time to check for priors and to compare the other photos on that roll to the suspicious one.
I don't know skr.
I have seen/read far too many horror tales about CPS to trust their judgment. There must be a happy medium, but I don't know what it is. I suppose the real problem is a combination of the failure of common sense, and the corruption of power. Some of these people get far too enthusiastic in their enforcement of these laws.