What happens after an accusation of elder abuse has been reported?

I tried to send this message/question earlier today, but had problems with my computer so that's why I'm trying again now.
I can't say for sure, since these things are confidential, but I'm pretty sure that my brother who hates me with a passion, reported me to the authorities for elder abuse. Mom is 87 and has dementia, as well as diabetes and a heart condition. Although I too am ill, I have been taking care of my mom since 2007 while my brother and sister-in-law never come over, much less lend any support whatsoever, financial or otherwise, to her or our well being. That being said, we were visited by two social services representatives who proceeded to interview (interrogate) us separately and promptly left. At this point we don't know what's going to happen next or what we should expect or when! Mom is VERY happy here at home (her home) and how well she is being taken care of. Her physical and emotional needs are being met quite well, as far as what she tells me and have told the investigators. I do NOT, under ANY circumstances, take advantage of her! She is under complete control of her own financial matters and I make sure that she goes to the doctor when she doesn't feel well or I feel that she needs to go and see her doctor if I feel something is wrong. We are BOTH VERY concerned about what, if anything, could happen if they believe whatever lies they've been told! Please! If anyone out there has been through something like this, AND/OR, someone who's worked in this kind of industry can help us understand what to expect in the future. This happenend/was reported about a month ago. We would be very grateful for any input you could give us so we're not so in the dark! Thank you!