I doubt many people on these forums would admit to claiming it, even if they were laid up in bed with a fractured back, missing both legs and using two good fingers to type on a laptop.
I've no doubt that some people do take claim IB fraudulently, but I suspect the vast majority are genuine, and some were probably signed off with IB when an injury/disability prevented them from getting any jobs at the time (a relatively minor bad back would probably have legitimately stopped most people working in most manual jobs a few years ago, but now they may be able to work in something like IT if they are retrained etc).
But I suspect the number of such cases is low.
The Tories do this every few years "If we get into power we'll magically make the numbers on IB (or other random benefits) drop dramatically by doing (insert testing/standards that are already applied)".
It's incredibly easy to say you'll do something if you know you'll not have the chance to do it (think keyboard warrior mentality, but with politics and peoples lives).
From what I know of IB you initially get signed off sick by your GP, and then apply for it.
You then undergo various tests and evaluations by an independent doctor at regular medical, he then makes a report as to his opinion of your condition which pretty much decides if you do get it.
This is then evaluated at regular intervals, the regularity decided by things like what you are ill with, and how long you've had it/are likely to suffer from it. So at first you might need to see the evaluating doctor every 6 months, then after a few years it might drop down to once a year , and eventually to less than that if it's a recognised chronic condition (you still have to fill in forms every now and then, usually with only a very short space of time to do it - which can make it hard for some people who are genuinely ill to do them in time, but not be a bother for someone who is milking the system).
One of my neighbours is chronically ill and was explaining it to me a while back (he looks pretty healthy if you only see him once in a blue moon, but once you actually know him you can see he's not exactly fit for work)
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