Level I — Investigative Interviewing Techniques
The flagship WZ program for private-sector investigators. Two days of live instruction in the non-confrontational interview method — covering rapport, questioning, behavior cues, admissions, and written statements. Graduates earn the WZ Level I certificate of attendance.
Built For
- Loss prevention investigators
- Corporate security teams
- Fraud and audit professionals
- Asset protection leaders
- Internal investigators
- Operations managers
What You'll Learn in Level I
Level I is built around the WZ non-confrontational method — a rapport-first approach that reduces resistance and produces accurate, defensible information. Over 200,000 investigators have trained with this exact framework.
Rapport & Empathy
Learn to open every interview with rapport — the foundation for cooperation and accurate recall.
False-Confession Awareness
Spot the conditions that produce unreliable statements and design interviews that don't create them.
Behavior Cues
Read verbal and nonverbal indicators of truth and deception in their proper context.
Written Statements
Produce written admissions that hold up across HR, internal-investigation, and legal review.
On-Site Available
Run Level I privately for your team and tailor cases to your industry vertical.
CFI On-Ramp
Level I is the foundation most investigators start on before pursuing the CFI credential.
Your Path to the Level I Certificate
Register for Level I
Pick an open-enrollment date or schedule a private cohort for your investigative team.
Complete Two Days of Training
Sixteen hours of instruction, scenario work, and discussion led by Certified Forensic Interviewers.
Earn Your Certificate
Receive the WZ Level I Investigative Interviewing certificate of attendance.
Apply on the Job
Use the WZ non-confrontational method in workplace theft, fraud, integrity, and policy investigations.
Progress to Level II or CFI
Continue building expertise through Level II workshops and the CFI certification pathway.
Level I & Related Programs
The Level I certificate stands alone, but it also lays the groundwork for Level II and the CFI credential. Pick the entry point that matches where you are today.
Level I — Investigative Interviewing Techniques
The flagship 2-day program covering the complete WZ non-confrontational method.
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Level II — Practical Application Workshop
Apply Level I knowledge through realistic case scenarios with live instructor critique.
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Online Investigative Interviewing Essentials
Core WZ methodology delivered through self-paced video lessons for flexible learning.
View Course Details CFI Preparation Workshop
Next step for Level I graduates pursuing the Certified Forensic Interviewer credential.
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Testimonials
“The absolute BEST part about our training was that after class it's all we could talk about! Two days were certainly enjoyable and impactful.”
“WZ Level I transformed our investigation outcomes. Our team's case resolution rates improved significantly while reducing the risk of false confessions.”
“The non-confrontational approach is a game changer. We now have consistent, ethical methods across our entire investigative team.”
Ready to Earn Your Level I Certificate?
Browse the public schedule or talk with WZ about hosting Level I privately for your investigative team.