What is the test for admitting psychiatric evidence in a custody action?

Accordingly, the principles on procedure in custody actions must serve as a guide here. The rule in custody is that 'common law adversary proceedings and social jurisprudence' must both be considered, and 'some reconciliation between them is necessary'. Kesseler v. Kesseler, 10 N.Y.2d 445, 452, 225 N.Y.S.2d 1, 5, 180 N.E.2d 402, 405 (1962). [54 Misc.2d 256] In the case at bar, as in Kesseler and its progeny, a reconciliation adapted to this particular type of proceeding must be reached. ⁷

Admission of Psychiatric Evidence Herein