That was my question. Kid looks super bruised. Why no call to the police?
In the interview with the mother of the three kids that were living with Roman's parents, she mentioned that Roman's Mom had been homeschooling the kids.
So I think there's your answer, once again Gitana, about why no one called police. If the kid's aren't in school every day, fewer chances for anyone to notice bruises and other injuries.
This is my thought - do we know where that picture was taken? If it was at school where they previously lived, that may support posters here who noted that there are often moves from state to state to keep ahead of CPS. By the time there was a report, the family was in California. It has all the markers, frequent moves out of state, refusing to allow contact from family (bio mom), homeschooling . . .