When I learned to build on my faith, the fear pretty much went away. I'm in a dark basement in a home that's demonically infested - that's not my idea of a fun evening, but again it boils down to your faith. That's your protection. That's the only protection we have.

There is a correlation between evil. There is a primary evil that comes directly from the Devil. Even though all evil stems from the Devil, the Devil sometimes interacts with people in the physical world and the spiritual world and sometimes there's just plain evil that people do to one another. And I've seen plenty of that over the course of 20 years.

I happened to write a book about the stuff I've been involved in over the years. It just so happened that my profession is that I was a cop in the New York City Police Department. I guess people thought it was pretty interesting to have these two things meshed together. My life is pretty boring, I don't know why they're doing this. It's fun.

Making it [police movie] as realistic as possible. I'm honored to be here because it doesn't happen that often from what I hear. They keep people like me away. "Come down and say 'Hello' and get out!"

From an early age I loved horror movies. I read books about horror, cops, firemen and military. Over the course of the years I started to see that there's a reality to this. The first movie I was really conscious of seeing was THE EXORCIST and I don't know if any of you have seen that but it scared the sh*t out of me. It really frightened me.

When I learned to build on my faith, the fear pretty much went away. I'm in a dark basement in a home that's demonically infested - that's not my idea of a fun evening, but again it boils down to your faith. That's your protection. That's the only protection we have.

Well, actually I look at the book and the movie [Deliver Us From Evil] - the movie isn't about a cop or the Devil, it's about God. There's a spirituality. We have aspects of life we're involved in but we really have no idea about the spiritual battle that rages around us that we are the subject of. The whole matter is the Devil tries to take souls away from God, and God tries to keep them. And that's what this is all about.