.. but what leads them into a fast chase in the first place? the fact they have there sirens going? What is really that urgent that warrants a chase? Surely a more "stealthier" approach is more effective and safer?
What sort of stealthy approach would you recommend in one of these?
If the vehicle fails to stop, it's an indication that there's something not right with the occupant(s) so it's obviously in the police's best interests to find out, be it a revoked licence, no insurance, drugs, burglary offences, whatever. You can't just let people go every time they floor it away from the police with the hope that maybe they'll catch up with them again another day.
Also not sure why you're quick to blame police for the collision when it's entirely possible that the other vehicle involved didn't react correctly.