My SIL is in her 40s with one five-year-old child. She denies having a problem but did get a DUI approx 8 years ago when in a previous relationship ('I only drove down one road').
We do not live close by and that side of the family acts like everything is fine until there is some sort of crisis. MIL and FIL have a close relationship with SIL and they frequently tell us life is going well.
But recently it seems likely that a) SIL is an alcoholic and b) both her and MIL are in complete denial. In September she had a fight with her now-ex, rang my DH completely drunk, with tears and screaming. Police were called. Neighbours told PILs she is always drunk. Has often sounded slurry on the phone only for MIL to say 'oh she's completely lucid, don't be silly'.
They all came to visit us the other day - they'd picked SIL up at 10 in the morning and got to ours for about midday. She was pissed. Loud, obnoxious, stank, emotional. They'd had a row in the car because FIL tried to mention it and MIL told him to back off. He's not allowed to talk about it.
FIL secretly told us that she had been caught a few days earlier drink-driving with her child in the car, but she's convinced she will get away with it because she failed to provide a sample at the police station (in fact failure to provide carries an automatic ban and is just as bad as giving a sample over the limit, plus as she has offended in the last ten years she should get a 3 yr ban at minimum).
I don't actually know what advice I want, my head is spinning. I suppose some insight would be useful. I asked how often is she drinking, is it once a week and she binges, or is it constant? Is it that once she starts she can't stop, or that she's always drunk? No one knows. FIL has seen crates of lager at her house, so thinks that is her problem, but can you really drink lager quickly enough to be pissed at 10am or is it more likely to be a maintenance drink during the day?
And of course I'm worried about SIL's son, my nephew. They are already on social service's radar. I get the impression SS know she drinks but are not worried until she is negligent (don't think they know about the drink driving yet). What I'd really like is for SIL to admit she has a problem so she can turn things around, but if her mother thinks she's fine I'm not sure how she's ever going to get there.
She is currently staying with PILs for the Christmas period so hopefully won't be driving or doing much of anything for the next week. I'm going to give FIL info on Al-anon but not sure what else we can be doing, if anything.
Sorry for super long post. There is a lot more back story so trying not to drip feed while also staying relatively concise!