C.T.

I. BACKGROUND

A. Detention/Jurisdiction/Disposition Proceedings On December 9, 2024, Contra Costa County Children and Family Services Bureau (Bureau) filed juvenile dependency petitions under section 300 on behalf of then five-year-old A.M., three-year-old C.M., and one-year- old E.M. The petitions alleged that several days earlier, mother hit A.M. and caused a large bruise to her left cheekbone, which resulted in mother’s arrest. All three children were also “found dirty and hungry, and without supervision in the parent’s truck.” A.M. was underweight for her age. C.M. and E.M. had severe diaper rashes that needed medical attention, and E.M.’s rash was so severe that it “formed blisters and was raw in areas.” The petitions further alleged that mother “has a serious and chronic substance abuse disorder,” a history of substance abuse related crimes, “engages in domestic violence” with minors’ father, J.M. (father), and has untreated mental health issues. The petitions noted that father also has a history of substance abuse related crimes. In its detention report, the Bureau stated that the social worker attempted to contact mother several times but she was uncooperative and blocked…