How do you tell DM about her new DPs criminal history?

[Mycatstolemylunch]

NC for this. My DM recently started seeing somebody new. Their relationship seems to be going very fast (the young kids were involved and he'd been invited on the family holiday in less than a month of meeting eachother). My DM has had an incredibly stressful year with having a serious and unexpected health diagnosis, and as horrible as it sounds, has been making some really questionable decisions.

When I met her new DP I noticed some things that bothered me but tried to dismiss it as just my discomfort at the speed of the relationship. But my younger sibling then also described some worrying behaviours that were big red flags to me. So I decided to be nosey. I searched his name on Google and there were multiple articles about him being charged for stealing and carrying a weapon.

Now I'm aware people can make bad decisions and it's possible he has got his life together however the most recent article was less than a year ago. I feel like my DM should know but I have no idea how to approach it or even if I should. I'm worried about her and I don't know if I'm overstepping but I just want her to be safe and happy.

Just tell her, straight out. That’s far far too serious to pussy foot around.

I would present the facts not opinion. Could you rope in one of her friends to do it perhaps? (Not together - just might be better coming from someone less invested)

So would say, "I found this article and I think it might be about X"

Not

"Look, X is a nasty piece of work and you need to leave him"

I'd tell her. I'd rather fall out with her for interfering and her know the truth than not say anything and something else happens.

I would definitely tell her, although she may not want to hear it, so I think you need to arm yourself with some evidence to show her in order to prove that you're not just being nasty.

If you didn't tell her and something awful happened, like he stole from her or hit her, then you would never forgive yourself. You need to tell her.

Tell her. Make sure your younger siblings are safe and remain her priority.

I agree, present the article and say this could be your new bf.
Don't tell her how she should react.

I hope she doesn't raise it with him. If it's him, he might deny it and gaslight her or get abusive with her.

Agree with above, I would tell her not to raise it with him.
A year ago is very recent and I'd wonder if he has a hidden agenda

She needs to be told, gently and maybe not by you. However it is possible she already knows. You could ask her how much she knows about his background.

It is a difficult situation and has to be handled sensitively. However it is not just your mother involved but her other children.