This article examines the role of linguistically and pragmatically sound question formulation in criminal investigations employing Layered Voice Analysis (LVA). The study aims to theoretically substantiate that carefully constructed interrogative sentences significantly influence the quality of voice data obtained and, consequently, the reliability of interpreting the emotional and psychological state of the interviewee. The paper analyzes the theoretical foundations of LVA, linguistic and psycholinguistic aspects of interrogative constructions, and their impact on investigative procedures. The study concludes that an interdisciplinary approach integrating criminology, linguistics, and digital technologies is essential for the effective application of voice analysis tools.  

Layered Voice Analysis, forensic linguistics, criminal investigation

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