Is Judge Rinder a real Judge ?

Yes, he serves on the court of a-peel

Don't think he is actually a real judge, they were discussing him on the radio last week, apparently he is a practising criminal law barrister.

So not a real judge, but he knows the ins and outs so to speak ! 

I've heard he's been tried on the bench.

yes hes a good judge on horses and greyhounds