The principal approach in Orthodox Judaism is to require strict evidentiary standards for "mamzer" status, sufficiently strict that proof of the existence of "mamzer" status is hard to develop and generally does not arise. Typically it is impossible to prove either that a prior marriage ever existed, or that a child was born of relations outside that marriage. Rabbis always allow the suspect child the in this matter. This usually leads to the conclusion that at the time of a person's birth, their parents were married or that the person is the child of a man and woman who were married to each other when the child was conceived.