Polygraph test for Custody Evaluation?

[eagle18hls]

     I have never heard any mention of polygraph test in custody evaluation.

My xwife is lying her ass off. It's de-energizing going back to all these moments in time, mostly where she flew off the handle when I got a lawyer to seek full custody.  False police reports claiming I spit on her the day after she learned I filed for full custody.
     
I just wanna answer these allegations hooked up to a polygraph machine and hopefully it would mean much more to the courts and evaluators.  I'm sure she would run and has from a challenge like that when my mother brought that challenge to both of us.