They told me that it was going down as a "Police Accident" (Polacc in their lingo), but didn't really explain any further than that, just told me to contact insurance and tell them that, which I did, but they didn't seem interested in it, saying the police probably wouldn't help anyway with regards to a claim.
A police accident is just one where a police car/driver may have been involved with (and in todays society, if a police officer seems to look in the general direction as a car accident occurs they treat it as a polacc because "omg transparency!!11!!". It doesn't mean that the police are responsible for the accident or that their insurance would pay out. What you can do is call 101 and ask for a reference number for the pursuit, in which your details should be listed. You may even try and ask about who the driver was and if they had insurance, but I expect you'll be incorrectly given a bunch of crap about "data protection" by a calltaker who doesn't really know what the DPA is about but errs on the side of extreme caution.
Insurance told me that basically, the person whose car was stolen's insurance would tell mine to sod off as they would be considered a victim of crime too
Yeah I think that's the way it works - IIRC you can't claim against the driver of the other car because it was out of his control. I imagine it will come from the big pot all insurers put into to insure motorists against people hitting them with no insurance.
and that the only chance I have of not having it claimed on my insurance would be if the police catch the bloke, and I think she said claim off his (if he has any ?).
Yeah good luck with that. People who steal cars then get into a pursuit with the police generally aren't the ones that have insurance on any vehicle. Ever.
Either way I think I'm not going to get very far with this.
It'll just be treated the same as if someone random side swiped your car and didn't stop/leave a note.