In Kansas, until recently, the funding for the child protective agency was based on caseload.
It incentivized the agents to find ‘violations’ where there weren’t any.
Another trick is to take the child to dentist, doctors, etc. and then charge the parents for the costs. If child support is involved, they'll take the money for all the programs and diagnoses from the check, which passes through the Social Services hands first.
The list goes on, but there is a scatload of opportunity for abuse of the virtually limitless power there, and that does happen.