Children - As introduced, requires, in contested child custody, dependency and neglect, adoption, and guardianship proceedings in which the court has appointed a guardian ad litem, a court to order the child to be evaluated by a qualified expert unless the court determines an examination is unnecessary; requires the expert to submit a report containing certain information; specifies that the submitted report constitutes prima facie evidence of the child's condition and the factors relevant to the child's best interest; specifies various other requirements for the guardian ad litem's consideration of the report and the allocation of the examination costs. - Amends TCA Title 36 and Title 37.