Are you an expert in family law, and if so, can you help?

<gets on end of hug queue>

What a horrid situation, I hope you can get some expert help soon.

Looking from an evidence point of view.  If you can, speak to neighbour and if they are willing get them to document any stuff they witness.

Words used, times, dates etc will all help to build a picture if any court orders are applied for.  The more you have, the stronger the case.

Could you get the FIL to come and stay with you for a while, to keep the girlfriend away from him?

Poor sossidge  

My first thoughts were what Happychap said.  The courts need to have the evidence to make any ruling.  Precise dates and timings and exact words they heard this woman saying.  If the neighbours can record it, or if someone can make any kind of recording of any of the incidents then you have got what you need to take it to court to have her removed. 

As the neighbour, I would actually call the police and report a domestic abuse incident is going on next door and that they fear what might be going on.  Make sure you obtain a police incident number.  The police take domestic abuse incidents very seriously these days.  You will still need a solicitor though to progress the evidence.   

All the best x 

What a bitch she sounds....

More hugs Sossie.

Agree with Blondiee - I would go for the logging of the incidents.

And I hope she crawls back into the hole she came out of.

Thanks everyone.

The neighbour has, and will continue to document what she hears. Mr.S and his sister went to see their dad's consultant yesterday to make him aware of the situation, and it turns out that he saw through the gf the first time he met her. He is going to strongly advise my FIL to move nearer to all of us, and reassure him that it won't cause him as much stress as he thinks...we will be on hand and can more easily drop in to see him a couple fo times a week, help out with the garden etc.

I've been in touch with the Alzheimer's Soc, and am getting some good advice about what to expect, and a bit more clarity on the legal issues.

Mr.S and his sister are also going to counselling sessions together, so they can put some coping strategies in place as he deteriorates (they also have a nightmare mother, which is not helping - but that's another story!!).

But the best thing is that FIL has decided he wants to 'take a break' from his gf, and is not going to see her or contact her for a month. Which is brilliant news.

Thanks to all of you for your help, support and advice - I really do appreciate it xx