'report signs of abuse' means exactly that. It doesn't mean go to extra lengths to uncover abuse. For example if a day care worker was able to (just hypothetic

'report signs of abuse' means exactly that. It doesn't mean go to extra lengths to uncover abuse. For example if a day care worker was able to (just hypothetically) attach a microphone to a childs bag and from that uncovered sounds of abuse at home my guess is that would not be legal or be able to be used as evidence. Not because the recording was illegal but because it didn't fit the definition of reporting signs of abuse.