MMJ Spots

I have a serious problem on my hands reguarding my neices and nephews. Their dad is a total loser! Anyways, my sister calls me up on friday and tells me her daughter almost died in the ER of the hospital. She had stolen a bottle of tequilla (the store has footage on tape) and got drunk (she said it was peer pressure) while ditching school. After she was totally entoxicated, apparently the girls she was with dropped her off at the school where she became very combative with the staff and was sent to the hospital where she slipped into a coma. Her blood alcohol level was .24 (3 times the legal limit and she’s 15 years old and weighs about 115). She is doing well now, and CPS was involved in this situation. So next my sister tells me that on Sunday her 13 year old son smoked marijuana with her 10 year old son. I immediately assumed they stole it from their dad because he’s nothing more than a drunken pot head. These kids have grown up watching their dad get drunk to the point of where they have called us crying while we are out and they think their dad is dying because he’s passed out on the floor moaning/groaning. This man has also grown marijuana several times (which the kids have been fully aware of) and the last time my boyfriend went to their house and tore down all the plants he had in his bathroom. There were extension cords running down the hall. He had transformed his bathroom into a green house. No mind you this is all legal because he’s got a license to grow medical marijuana and a license to smoke it. He missed his daughter’s 15 birthday because he had to go down to Fresno and seen a certain doctor who apparently hands these licenses out like candy. He is obsessed with marijuana and it really isn’t even necessary for him. He’s got a shoulder injury, and I know the guy so this is just an excuse for his addiction. Anyways, now that the 2 younger boys are smoking weed, she tells me that her 13 year old son is also “cutting”. For those of you who don’t know this is a form of self-mutilation where they cut themeselves with who knows what. I spoke to my sister this AM and told her to rip the damn plants out and kick her husband out if he’s gonna keep doing this stuff. She told me that she wasn’t gonna rip the plants out, that he needs to decide that it should stop on his own because last time she chose for them to go (so my boyfriend ripped them out for her). I am obviously scared for my neice and nephews and I don’t know if I’m over reacting or if I am valid. I know if I got CPS involved the kids could probably be pulled out of her house. I don’t think it would be a safe thing for me to take them as I’m only 28 and had my first child who is only 4 months old. So, what do I do???