With 28 years of professional interviewing experience — including 20 years dedicated specifically to investigative contexts — DH is a highly experienced investigative interviewing specialist and instructor who continues to actively work in this field. Throughout a distinguished career, DH has conducted and led countless interviews in complex, high-stakes settings, developing a reputation for professionalism, precision, ethical practice, and sound investigative judgment. 

DH brings a specialized educational background and developed expertise in communication skills, human behavior, and social dynamics. This academic foundation, combined with decades of real-world investigative practice, provides a deep understanding of how interviewers must strategically plan, execute and evaluate interviews — core competencies that underpin effective investigative interviewing. 

As an instructor, DH has extensive experience teaching investigative interviewing techniques to a variety of audiences. The training incorporates the latest research-based interviewing methodologies and proven best practices, ensuring participants learn modern, ethical, and evidence-based approaches. Participants leave with practical, immediately applicable skills designed to strengthen communication effectiveness, improve information gathering, and elevate investigative outcomes.