Sounds to me like a social worker needs to be indicted for suborning perjury.
Oh, I must have forgotten - the Clintonists have told us that committing perjury and suborning perjury are victimless crimes, never mind...
Unfortunately, in most states they are immune to prosecution. This type of situation is a common occurrence, I have worked in the field of false accusations having dealt with it on a personal level. Our own children lied and said my husband and I were drunks, did drugs and beat them all the time which was a total fabrication. All I did was try to keep my stepdaughter (and my daughter) from going to her boyfriend's house where I found out they were allowed to smoke, do drugs and sleep together. The boyfriend's parents convinced them that if they could prove us unfit parents, they could come live with them (over my dead body). The state took my kids, repeatedly lied on court documents, and put us through total hell (parenting classes, drug and alcohol testing, family therapy, etc.). The girls recanted but they would not believe them. They placed my girls with my stepdaughter's grandmother who promptly let them go back over to the boyfriend's house and spend the weekend. My stepdaughter got pregnant shortly thereafter, the exact thing I was trying to prevent. When they were finally returned home, I sent my stepdaughter to live with her mother. My daughter was so out of control and violent when she was returned to me that I had to commit her to a treatment hospital and then the state hospital. After she was released she knocked me unconscious and hubby called the cops and she went back into state custody, they charged me with medical neglect even though I had insurance claims for $26,000 worth of care for her in the preceding 3 months. They charged my husband with child abuse for pulling her off of me and restraining her until he could get her out the front door and lock it as she was threatening to kill me and him. Again, the state lied through their teeth in court. My daughter "aged out" of the system at 18 and they basically threw her out on the streets with nothing.
I say let child abuse be investigated by law enforcement, and prosecute true abusers to the full extent of the law. Social Services should only take temporary custody until the trial. Only when the parents are proven guilty in a court of law should social services step in and take permanent custody.