Send A Letter To Describing The Outcomes Of Their Decision

Location: Massachusetts

After my divorce, my ex and I had 50/50 shared custody of our child. Very soon after moving out of the house, her new partner moved in with her. About 4 years after our divorce, the kid (age 9) came back to my house after a long weekend in the woods with mom and her partner, and described the partner taking them into a room alone, undressing them, and examining their naked body "for ticks." I reported this to the police and went to court the next day to get an emergency order for custody, which was granted. After going through DCF evaluations, it was decided that the partner did nothing wrong and we were ordered to resume our original custody agreement. Fast forward to 2025, the partner gets arrested for sexually assaulting the friend of my kid at their house during a sleepover. During the ensuing investigation, my kid comes forward and discloses that the partner started sexually abusing them about 3 months after we resumed shared custody.

Clearly my concerns have been proven correct, and the terrible decisions made by DCF and the judge exposed my kid to years of sexual and emotional abuse. I have been mulling over sending this judge a letter, updating them on the outcomes of their decision. I am not looking for retribution or restitution, I simply want to remind them that their decisions have profound, lasting, and sometimes devastating impact on the lives of real human beings. My letter would be polite and non-threatening. I understand that I have no control over whether or not the judge reads it, but is there any reason something like this could expose me to legal risk?

Edited to minimize risk of identifying details