Help!! Poor Kids

My husbands brother has 5 kids the oldest being in 7th grade and the youngest almost 1. Well he doesnt have a job and his girlfriend does. Well they leave all four kids to the oldest one. When they are around family or at a get together they yell at the older boy to watch the baby and when the baby cries they yell at the older son. This is getting out of hand. They leave the kids at home by themselves while she works and my brother in law is nowhere to be found. I dont think is fare for those kids to be raised like that. I have been so close to calling CPS but i dont want any problems with the in laws i just feel sorry for those kids. Any advice!??
Flowerwife27 Flowerwife27
22-25
Jan 18, 2013