I had a £250 GPS tracker in my (pricey) electric bike, and it got stolen. No worries - I tracked it. It was on it's way up the M40 motorway. I called the local

I had a £250 GPS tracker in my (pricey) electric bike, and it got stolen. No worries - I tracked it. It was on it's way up the M40 motorway. I called the local police. But it was already out of their jurisdiction. An hour later, it stopped. It had ended up in the back-garden of a house in Aston, a suburb of Birmingham. Jurisdiction: West Midlands Police (I think). So I rang them - I gave them the actual address. "I'm sorry, we can't just go ringing the doorbells of people based on that, and we certainly can't go searching their back-garden. And we have more important things to do than search for bikes; do you have any idea how many Porsches and Ferraris are stolen in the West Midlands every week?". Suppose I come to Aston, and ring the doorbell myself? Will you assign an officer to make sure the thieves don't try to kill me? "Nope." My replacement bike is a Ferrari, with no GPS tracker.