How do you solve the dilemma?
When the investigation is complete, and abuse allegations are found to be false, disbar the lawyers presenting them and throw the accuser in jail. In other words, if you make the allegation, you'd better have proof.
Yeah, but just try to bring a law like that forward, and watch who starts screaming.
Most allegations simply can't be proven false to the reasonable doubt standard that would be needed to put a false accuser in jail. They may simply be no evidence one way or another. If a mother claims that the father fondled the child, for instance, and the charge isn't proven, but you also can't prove affirmatively that she made it up, what do you do. Again, there is a balance- if the allegations are not believed but later turn out to be false, then the judge gets blamed because something happened to the child.