Apparently his behaviour is perfectly acceptable as long as it is on his own premises, and she can't take him to an industrial tribunal because she hasn't worked for him for long enough. The CAB suggested she could take him to a private one, but the money required is far too much. Basically that's the end of it. He gets away with it and mum is left unemployed and unable to claim benefits.
And now for something completely different. I have updated the info page of dreamsanderos (an erotic writing community) with the current FAQs. Check it out, it may give you some ideas who knows.
On that note this month's picture challenge still only has 2 entries. If anyone feels like turning their hand to it feel free, you can find it in the memories section.