When you're undercover you try to stay as true to your identity as you are. You know who you are, and you know how you normally function. If you try to put on a pretense, such as assuming a fake voice, you have to put on that fake voice all of the time. And you can't afford to slip out of it. It's too dangerous.

My mother never liked that I worked undercover. She always worried.

At various times in my undercover career I had either a full beard, a short-cropped beard, Fu Manchu, a plain simple moustache or just a goatee. We did that - generally we would have a look that we would maintain for anywhere from 3 to 6 months.

Ron Stallworth Quotes