If you did not abuse yr child, they told a lie to the police, And that is a crime right there (lying to the police).
In this case, they will be punishable by law. I think it is a felony (big crime). Google this stuff Snowfed river ji. Tapai student bhannu bho tara researching skill chai tyeti bhayena justo chha ki? maaf paun if i offended you and if that is not the case.