A talk with David Zulawski, an expert in interrogation/interview techniques. Zulawski is co-owner of Wicklander Zulawski and Associates (w-z.com), a firm specializing in interview and interrogation consulting and education. Zulawksi is co-author, with Wicklander, of the respected and widely-used book "Practical Aspects of Interview and Interrogation." We talk about interrogation techniques, with a focus on psychological and behavioral aspects.