By Slanted Light

Well, my understanding is that Chief Constable Green was modelled somewhat on James Anderton. But I'll discuss with the betae, if it's going to throw readers off.

Though Doyle isn't spending a whole lot of time in the town itself.

Well, as long as it's significantly north of London, though not too far - that's the main thing.
And look - it is! Better than Manchester, even... okay, filing that away for later...