Should I Call CPS?

I'm not sure "Parenting" is quite the right sub for this, but as it pertains to children I figure I might get some good input here.My 11yo niece-in-law is visiting and spending the night. She's a pretty good kid, good head on her shoulders, but she comes from a rough past and is around some less than savory influences (though her home is a safe place, otherwise I'd demand she be here with us). She's officially hit puberty and has gone full blown boy crazy and was telling me about various boyfriends. She mentioned one she "broke up with" because he had anger issues. Long story short she told me he "beats up" all of his ex's (this boy us 10, mind you). I pressed for clarification and she insists he literally beats them up, that he beat her up. I'm sitting there feeling kind of mind blown, again, pressing to be sure she's not using the term in some weird way, and she described how he pushed pushed her to the ground and kicked her and had his knee on the back of her neck but she managed to kick him in the face. She told me he runs around fighting people a lot and smokes. She showed me pictures commenting about how "he was really high in that one". SHE'S 11 YEARS OLD!!!! She went on to tell me how his dad beats girls up too, that he just got out of jail for it. I started trying impress upon her the seriousness of this issue but she was fairly flippant about it. I really tried to stress to NEVER let anyone treat her that way and that it's ok to tell someone and ask for help.So my issue here is that I've just been told about a 10 year old who's smoking, doing drugs, and running around beating people/being beaten up. She told me their names and I googled the father and from what I could find he has indeed been in some serious legal trouble. I found one report that did actually include assault involving punching a woman in the nose. So there seems to be validity to what she's telling me and she's never given me reason to doubt or mistrust her. She likes me and tends to open up to me pretty freely (once even telling me she wishes I was her mom and often urging us to love to a bigger place with a "spare" bedroom). But now here I am knowing about this boy, this young child, who is living this life of horrible learned behavior. I imagine odds are good he's been abused himself. It's very sad and troubling that this is the road this boy has been sent down but at this point he's old enough to know right from wrong. I want to intervene for his sake and for the safety of my niece and the other little girls that all seem to live in and roam the trailer park, but uiw do I go about that? Do I call CPS or some other social service and sound the alarm about this boy's situation? Do I do it anonymously? Will they listen to me when all I ha e is the word of an 11yo girl?This is all so disturbing...what do I do?! via /r/Parenting https://ift.tt/2mwYF5B