There was a particularly egregious case in my town about thirty years back. There was a guy who was caught molesting a girl at a Salvation Army halfway house. He was in a “relationship” with her profoundly mentally handicapped mother (clearly a case of rape to begin with). He went to prison for about five, six years, did it AGAIN, fled to Georgia, did it AGAIN, and ended up dying in Atlanta of mysterious circumstances.
Turns out, this guy had molested over seven, eight children in his own family, and his family protected him. CPS was called in by multiple teachers and concerned family friends, and they shrugged their shoulders, “kids have food, water, shelter, what else can we do?” Around four of his victims have since died from suicide or drug overdoses.
TL;DR, CPS is fucking useless.
edit: words