Dependent Children; Provides additional situations in which rebuttable presumption of detriment is created; requires certain guardians ad litem & attorneys ad litem to have special training in parricide; requires certain persons to provide to court & certain agencies & persons access to certain records of child; requires visitation or other contact to be supervised by person who has special training in parricide; requires court to refer certain children to specified trauma-informed therapeutic services; provides additional reasons law enforcement officer or authorized agent of DCF can take child into custody; requires hearing before placing certain children in shelter.