The State of Arizona considered recently an addition to its list of factors in determining the award of custody to a parent in a divorce case. This proposed addition addresses an issue that I have seen many times in my many years of managing high conflict custody cases: the false allegation of domestic violence in a contested custody case.
A false allegation of domestic violence in a custody case often takes the form of an initial filing for an Emergency Order of Protection prior to, or at the same time, that a divorce is being filed. The parent filing the falsely alleged OP believes that he/she will gain an advantage in the divorce case by having the other parent removed from the marital home and estranged from the children.
I see these false claims in OPs being made by parents actively committing Parental Alienation.