Want to call DCS but not sure if I should be the one to do it.. any advice?

So my bf and I have been together almost 7 years. His parents have been on and off of drugs his whole life. They lost custody of my bf when he was a teenager and lost custody of his little brother as well. The little brother (11 or 12 years old currently) has been in the custody of multiple family members in his family over the years, but it didn’t really work out in any of the homes except for with his aunt so that is who has full legal custody of him. Well this aunt decided to just “give” him back to his parents who were clean at the time but have since gotten strung back out (shooting up heroin doing meth and everything). So he doesn’t even live with his aunt he lives with his parents. The aunt says she doesn’t care and she’s basically washed her hands of the situation because she doesn’t wanna raise him even though she still has full custody of him until 18 which that in itself is a court order violation. The little brother is being exposed to drug use and whatever else his parents have going on. He recently has been getting into all kinds of trouble and being caught with things that a child his age should NEVER have access too. For example just recently he was caught with a bag full of weed, thc pens, vapes, a bottle of unknown pills, ski masks, and a LOADED HAND GUN. Literally a loaded gun that was under his bed. When he was caught he apparently admitted that he took the gun from his dad who owned the gun and had known it was missing for the past 2 months and turns out this little boy had it. Like why are there guns in the house that a 12 year old can access? His parents are both felons and cannot even own guns. They also found photos on his phone of him and his friends all wearing ski masks and taking turns having their picture taken holding the gun pretending to shoot it. I just cannot believe that he is so young and having access/exposure to all of this. My bf does not want to call DCS because he won’t be allowed to live with anymore family members since he’s lived with all of them before and it never worked out so if he gets taken away he will definitely be put in a foster home or group home and my bf doesn’t want that. But I feel like foster home or a group home would be far better than what’s going on. It’s a wonder this little boy hasn’t overdosed or accidentally shot himself or ended up in juvie god only knows what. He’s already been kicked out of school and placed in alternative school. I want to call DCS myself (anonymously of course) and not tell my bf about it, but if it ever did somehow come out that I was the one who called and got him took, my bf would never forgive me and his whole family would hate me for it. I just cannot stand to hear about the stuff he is getting into and everyone just doing nothing about it because they don’t want him to be taken away. I understand that, but I just feel like something needs to be done asap I’m just not sure that I should be the one to do it… what should I do or is there a way to have someone else report this ? The aunt needs to get in trouble for even allowing all of this to be happening in the first place.

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