“The worst part is staying in the room after you’ve broken the news, so that you’re forced to be there when someone’s life disintegrates around them. Some people say it doesn’t bother them – such people are not to be trusted.”

If you just warn people, they often simply ignore you. But if you ask them a question, then they have to think about it.

Conflict resolution,’ said Nightingale. ‘Is this what they teach at Hendon these days?’ ‘Yes, sir,’ I said. ‘But don’t worry, they also teach us how to beat people with phone books and the ten best ways to plant evidence.

For a terrifying moment I thought he was going to hug me, but fortunately we both remembered we were English just in time. Still, it was a close call.

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

When you’re a boy your life can be measured out as a series of uncomfortable conversations reluctantly initiated by adults in an effort to tell you things that you either already know or really don’t want to know.

The first rule about a black woman’s hair is you don’t talk about a black woman’s hair. And the second rule is you don’t ever touch a black woman’s hair without getting written permission first.

On the plus side, there were no rioters in sight but on the minus side this was probably because everywhere I looked was on fire.

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.

A physical expression of formae. Or at least have got close enough to explain all those legendary swordsmen and their inexplicable desire to roost on the tops of bamboo trees.

He was calling it an atonic seizure because, even if he didn’t know why it had happened, it was important to give it a cool name.

Every male in the world thinks he’s an excellent driver. Every copper who’s ever had to pick an eyeball out of a puddle knows that most of them are kidding themselves.

The study of the victim is called victimology because everything sounds better with and ology tacked on the end.

This is your brain on magic.

If you find yourself talking to the police, my advice is to stay calm but look guilty; it’s your safest bet.

My dad once told me that the secret to a happy life was never to start something with a girl unless you were willing to follow wherever it led. It’s the best piece of advice he has ever given me, and probably the reason I was born.

I gave the prescribed Metropolitan Police “first greeting”. “Oi!” I said “What do you think you’re doing?