For example, it could well be though that there is an issue with why they were taken seriously, or if they were encouraged to make the complaint in the first instance
Hi Loosetooth,
My experience is, that the flawed link in the chain of things which ends with 'false' complaints being taken seriously, is the manner in which children's testimonies are elicited (drawn out by staff and processes).
Even if you were a member of the school staff, so having a hands on experience of how processes work in a particular school, it would prove difficult for you to argue for malpractice in how the children's evidence was elicited, unless the faults involved were gross. For someone from outside the school, it would prove well nigh impossible to argue for malpractice, unless the faults were exceedingly gross.
Schools tend to be organised such that they can point to their policies (which will tick all the right boxes), and will argue that they merely followed proper procedure, as they were legally bound to do.
Now I think that there is a major problem here. My experience is that innocent staff can be caused distress which threatens their personal health.
My judgement would be that your mother-in-law would be best served: either by getting on with her life and putting the incident behind her as best she can, drawing on the support of loyal friends; or, if she were minded, and if it proves possible, joining together with others who have suffered as she has.
The more people who think that the current way of dealing is unacceptable, and the more this group organises to demand that something constructive be done to make things better, then the better it will be for everyone.
I think that the path of seeking personal redress and compensation is a punishing and ill-rewarding one. But if you find that there are groups out there who think otherwise, then it would be interesting to know about that.
I feel for you. I teach, and two good friends have been subject to a little of what your mother has been; and the results are absolutely devastating. My regards to your mother in law. Stay strong.
colin