DCS kidnapped my granddaughter from her parents! Please Help Us!

CPS or DCS has kidnapped my granddaughter over a jet ski accident. It was a accident, all 3 were hurt, there was no malicious intent. It’s been 3 years and still has not been brought to trial. No due process, they had no reason to take her. They are great parents, the CPS worker lied and falsified documents. Which we have proof! The psychiatrist that works for the state of Tennessee in Decatur county is on my son & daughter in law side! This is criminal what they have done! Please help us!! I don’t know what to do!! Thank you!