Wicklander-Zulawski (WZ) Technique
Definition
A non-confrontational interview method widely used in private-sector fraud investigations. The interviewer builds rapport, presents the evidence indirectly, rationalises the subject's behaviour, and invites a disclosure rather than demanding a confession. Reduces the risk of false admissions and legal challenge compared to direct confrontation.
- Approach
- Non-confrontational interview method
- Sector
- Widely used in private-sector fraud investigations
- Core steps
- Rapport, indirect evidence presentation, rationalisation
- Goal
- Invite disclosure rather than demand confession
Common questions
How does the WZ technique reduce the risk of a false admission compared to direct confrontation?+
By avoiding accusatory pressure and instead rationalising the subject's possible behaviour, the method lowers the psychological pressure that can push an innocent or uncertain subject toward a false admission just to end the interview.
Is the WZ technique used in law enforcement interrogation as well as private-sector fraud work?+
It originated as a private-sector alternative to confrontational interrogation methods and remains most associated with corporate and fraud examination settings, though non-confrontational principles have influenced law enforcement interviewing more broadly.
Related terms
- Cognitive Interview
- A structured witness interview technique developed by Geiselman and Fisher that uses four retrieval aids: mental reinstatement of context, reporting everything without...
- Miranda Warning (US)
- The required pre-interrogation caution under US constitutional law (Miranda v. Arizona, 1966), notifying a person in custodial police interrogation of the right...
- PEACE Model
- A structured interview framework used by UK law enforcement and increasingly by private investigators: Preparation and Planning, Engage and Explain, Account, Closure,...
- Rationalisation
- In the context of the fraud triangle, the mental justification a perpetrator uses to excuse fraudulent conduct. In interviewing, rationalisation is used...
- Voluntary Admission
- A statement made by a subject of their own free will, without coercion, inducement, or improper promise. Voluntary admissions are legally significant:...