“Being a seasoned Londoner, Martin gave the body the "London once-over" - a quick glance to determine whether this was a drunk, a crazy or a human being in distress. The fact that it was entirely possible for someone to be all three simultaneously is why good-Samaritanism in London is considered an extreme sport - like BASE jumping or crocodile wrestling.”

“...good-Samaritanism in London is considered an extreme sport - like base-jumping or crocodile-wrestling.”

“My Dad says that being a Londoner has nothing to do with where you're born. He says that there are people who get off a jumbo jet at Heathrow, go through immigration waving any kind of passport, hop on the tube and by the time the train's pulled into Piccadilly Circus they've become a Londoner.”

“Not being invited in is one of the boxes on the “suspicious behavior” bingo form that every copper carries around in their head along with “stupidly overpowerful dog” and being too quick to supply an alibi. Fill all the boxes and you too could win an all-­expenses-paid visit to your local police station.”

“Could it have been anyone, or was it destiny? When I'm considering this I find it helpful to quote the wisdom of my father, who once told me, "Who knows why the fuck anything happens?”

“My mum translated this in her head to "witchfinder," which was good because like most West Africans, she considered witchfinding a more respectable profession than policeman.”

“Despite my mum being from a small village in the middle of a forest, I'm not a country person. I don't like my bacon sandwich to be curiously snuffling at my fingers. But sometimes being police means holding your breath and fondling a pig.”