Nope. As I childcare worker, I have had to study child protection, as well as being involved in the reporting of families for suspicion of abuse and neglect. Dh is also a police officer and hasn't seen the truely horrific things many of them have seen (thankfully!), but he's also seen enough and had the bureaucratic nightmares others have mentioned of not legally being able to do something for some kids/families, to be able to tell me I wouldn't be able to do it. I have heard and seen enough just doing that without actually being a CPO. I thought about it briefly but I know I couldn't cope with it.
But none of these responses will be able to tell you if YOU can do it hun. If you think you could manage the psycological/emotional side of it all, I know you would be awesome!