Yes, they do. And there have been some reports over the years about how wild and undisciplined the kids are. Pitt has been working on back to back movies over the last couple of years, so he isn't able to spend a lot of time with them. They've had disagreements for a long time about how to raise the children.
No doubt, the judge will want to talk to nannies and other staff when the time comes.
Oddly, Angelina has her brother watching the kids now. He's always been an odd duck, not sure I would want him around my kids.
http://hollywoodlife.com/2012/03/21/brad-pitt-angelina-jolie-kids-wild-behavior-report/
It's been said that Angelina Jolie does her own PR/media relations management. Most of what is coming out in the news media right now is directly from her. The news about his alleged recent meltdown on a private plane is sketchy. Odd that she would release a news story saying he was "under investigation". Why would a parent make up something like that and spread it to the news media? What is she hoping to gain from this? They're both wealthy. He works all the time, so the kids will likely spend most of their time with her. So what does she hope to gain by putting all this out in the news/gossip media?
ETA: In latest news, LAPD says they are not investigating any allegations or reports against Pitt for child abuse.
http://www.usatoday.com/story/life/...sed-child-abuse-under-investigation/90825098/
So it looks as though she's making this up. She needs help.