Sounds like there's a lot of it about locally then.
This is the service I was already signed up to that alerted me...
...it's free so worth signing up for.
It's updated once a month with general info, but if there's anything awry (like fraud detected) they'll alert you as soon as your credit file has it.
It's worth checking the general info perioducally just to see if there's been any odd credit checks you don't recognise, as banks don't always detect the fraud on their own.
In my case one did, one did not - I alerted them to it.
If you do see something you don't expect, then this site will give you much more follow-up info...
...but it's paid (with one free month) but will help you get a clearer picture of what's gone wrong and who you need to get in contact with to sort it out.