YOUR FIRST NOVEL WAS A COMIC LOVE STORY. WHY DID YOU WRITE A POLICE PROCEDURAL?
I didn’t want to write the same kind of book — I was in a much darker mood. I’ve always been a consumer of police procedurals and mysteries, and I thought it might be fun to try writing one.

WHICH CAME FIRST: RESEARCH OR WRITING?
I wrote the first draft without speaking to any cops. I started writing about the thieves, and worked my way around to the cops. At the same time, I was reading as much as I could about identity theft, computer crimes, accountants and the NYPD.

HOW DID YOU APPROACH THE NYPD?
Although I was petrified to do it, I knew I’d get a faster response if I went to Police Headquarters, instead of mailing or faxing my request into a void. I was actually half-way down there on two separate occasions and decided I wasn’t up to it. One Police Plaza is a very scary place. One Police Plaza is a citadel. I finally forced myself to go, because I couldn’t finish the book without speaking to a detective who was actually doing the kind of investigation I was writing about.

HOW DID THE NYPD REACT?
I was absolutely astonished by the access I was granted.The director of the Office of Public Information saw me immediately, and referred me to a detective in the Major Case Squad, Tom Nerney, who had been on the job for over 35 years. Detective Nerney let me tag along with him, and during the course of many interviews, he answered thousands of questions and introduced me to a variety of different detectives at Headquarters. Everyone seemed glad for the opportunity to describe what they do.

I was also permitted to audit a few classes at the Police Academy’s Criminal Investigations Course for detectives. Through Detective Nerney, I met a few members of the Computer Investigations and Technology Unit (CITU), one of them Detective Mike Fabozzi, who was extremely helpful and precise in explaining how computers leave traces behind, very much like people.

WHAT WERE THE INTERVIEWS LIKE?
Sometimes, the information exchanged was strictly procedural, like: what are DD5’s and who gets them. Or tactical, like: how would you elicit particular information from a suspect’s friends or neighbors. And sometimes the conversations took a detour, like: Why do people commit crimes? Why do some people observe laws, and not others? Why would someone steal $100 million? Would the same guy steal $100 as easily? If something wasn’t nailed down, would he steal that?

HOW LONG DID THE RESEARCH TAKE?
I interviewed people and revised my first draft for about nine months.

WAS YOUR RESEARCH AFFECTED BY 9/11?
I conducted my last interview on September 7, 2001. If I were starting this book now, I couldn’t possibly be granted this kind of access to the NYPD. You can’t just stroll into Police Headquarters without an appointment anymore: they have several rings of security in front of the building.

And even if they had wanted to talk to me, the detectives I interviewed didn’t have the time after September 11: they were working 12-16 hour shifts with maybe one day off a month, for at least 5 months. One of the detectives I interviewed was setting up a database of body tissues in the morgue; another was also in the morgue, looking for DNA matches.

ARE YOU A TECHIE? HOW DID YOU FIGURE OUT THE COMPUTER CRIME ANGLE?
I’m not a techie, but I decided what my thieving characters would do, and then did enough research to figure out how they would do it, and how the detectives following them would go about hunting them down. For this, I interviewed accountants and cops, and did research on-line in bank security, money laundering and identity theft.

But I had some help: while I was in the midst of the research, a busboy from Brooklyn stole millions of dollars from 200 people on the Forbes 400 Richest People list – people like Oprah, Steven Spielberg, Martha Stewart, Warren Buffett – using only the details in the magazine article and the computer in his local public library. This was a story that got remarkably little attention, I assume because nobody wanted to publicize how easy it is to access private data by using public information.

The busboy — who was a high school dropout, by the way — approached credit rating agencies and got private financial details about the celebrities, which he used to set up “clone” accounts in their banks. He then siphoned funds from the real accounts into the clone accounts, which he had control over. The Computer Investigations and Technology Unit had that case. Since I knew I couldn’t make up details as artful, I allowed my characters to borrow some of his tricks, such as the web-enabled cell phone that “impersonated” other people’s phone numbers. This allowed him to pretend he was calling from his beach house in Santa Monica when he was actually sitting in a restaurant kitchen in Brooklyn.

WHY DID YOU CHOOSE TO WRITE ABOUT SUCH AN UNATTRACTIVE WOMAN?
Women aren’t allowed to be unattractive in our culture. If you’re a woman alive in America now, whatever you’re doing to maintain your physical plant is just not enough. Right now, supermodels and teenagers are paralyzed with insecurities, and America is just saturated with sex, sexuality, sexual information and naked bodies. And it’s not just about finding a man: ignore the trends and you’re committing professional suicide, too. Our culture puts such a stigma on women who don’t get on the beauty and fashion treadmill to make themselves attractive that I was interested in writing about someone who didn’t play the game. It’s one of the most radical things you can do as a woman.

I wondered how a woman like this might go about her day, interact with the world, handle the bombardment of media images. Because what are the women’s magazines about, if not SEX and HAIR? The assumption is – even after all these years – that it’s important to make yourself attractive to men, because through men you get power. Great hair equals power. Well, what if you don’t have hair? Where do you find your power?