‘Yes, yes, I know, and you do, too. But in his case, it poses a serious difficulty. He is supposed to be commanding First Precinct, not working other cities’ crimes, and I am trying to run a police department.’

‘When violence occurs anywhere, it is everybody’s problem,’ I said. ‘No matter where your precinct or department is.’

Tucker stared thoughtfully ahead at the shut steel bay door. He said, ‘I sure as hell couldn’t do what you do when it’s this late at night and there’s nobody around except the people in the refrigerator.’

‘It isn’t them I fear,’ I matter-of- factly stated.

‘Irrational as it may be, I would fear them a great deal.’

Headlights bored into dingy stucco and steel all painted the same insipid beige. A red sign on a side door announced to visitors that whatever was inside was considered a biological hazard and went on to give instruction about the handling of dead bodies.

‘I’ve got to ask you something,’ Colonel Tucker said.

The wool fabric of his uniform whispered against upholstery as he shifted positions, leaning closer to me. I smelled Hermes cologne. He was handsome, with high cheekbones and strong white teeth, his body powerful beneath his skin as if its darkness were the markings of a leopard or a tiger.

‘Why do you do it?’ he asked.

‘Why do I do what, Colonel?’

He leaned back in the seat. ‘Look,’ he said as lights danced across the scanner. ‘You’re a lawyer. You’re a doctor. You’re a chief and I’m a chief. That’s why I’m asking. I don’t mean disrespect.’

I could tell he didn’t. ‘I don’t know why,’ I confessed.

He was silent for a moment. Then he spoke again. ‘My father was a yardman and my mother cleaned houses for rich people in Baltimore.’ He paused. ‘When I go to Baltimore now I stay in fine hotels and eat in restaurants at the harbor. I am saluted. I am addressed “The Honorable” in some mail I get. I have a house in Windsor Farms.

‘I command more than six hundred people who wear guns in this violent town of yours. I know why I do what I do, Dr. Scarpetta. I do it because I had no power when I was a boy. I lived with people who had no power and learned that all the evil I heard preached about in church was rooted in the abuse of this one thing I did not have.’

The tempo and choreography of the snow had not changed. I watched it slowly cover the hood of his car.

‘Colonel Tucker,’ I said, ‘it is Christmas Eve and Sheriff Santa has allegedly just shot someone to death in Whitcomb Court. The media must be going crazy. What do you advise?’