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전략적 증거제시(SUE) 기법과 증거 강도(強度)의 진술 변화 판별 효과성

Effects of Strategic Use of Evidence and Strength of Evidence on the Change in the Suspect’s Statement

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초록

기만적인 단서들을 발견하고 이에 따른 진실성을 판단하는 것은 경찰의 수사면담에서 중요한 부분이다. 수사면담에서용의자와의 대치 상황 중 중요한 문제는 유력한 용의자가 일반적으로 혐의가 있는 정보를 제공하지 않는다는 것인데, 이에 대응하기 위해 개발된 면담기법이 전략적 증거제시 기법이다. 이에 이 연구에서는 증거의 특성 중 해당 증거가범행을 얼마나 입증할 수 있는지에 관한 강도를 전략적 증거제시 기법에 대입할 시, 범행 관련 진술 및 진술 변화에어떠한 영향을 미치는지 알아보고자 하였다. 모의범죄 과제는 총 3단계로 나누어 진행하였으며, 참가자들 전원은 조건없이 동일한 과제를 수행하였다. 짧은 해킹 영상 과제를 시청한 다음 주어진 해당 사이트에 접속해 해킹 코드 입력 및기초 코딩으로 해킹 프로그램을 심게 하였고, 해킹에 대한 주요 정보 및 관련 내용을 포함한 문서를 가져오는 작업으로마무리하였다. 종속변인은 진술 변화로서, 면담의 단계마다 진술이 어떻게 변화되는지 확인하였다. 연구 결과, 강도가강한 증거를 제시할수록 더 많은 진술 변화를 이끌어내었고, 전략적으로 증거를 제시할수록 더 많은 범행을 시인하는것으로 나타났다. 그러나 증거의 강도와 전략적 증거제시 기법에 따른 상호작용 효과는 유의미하지 않았다. 이러한결과를 바탕으로 증거의 강도와 전략적 증거제시 기법의 의의와 한계에 대해 논의하였으며 향후 연구 방향에 대해제언하였다.

Abstract

Detecting deceptive clues and judging their truthfulness is an important part of police investigation interviews. An important problem in confrontation situations with suspects in investigation interviews is that strong suspects generally do not provide incriminating information, and the interview technique developed to address this is the strategic evidence presentation technique. Accordingly, this study aimed to examine how the strength of the evidence, which is the characteristic of evidence that can prove the crime, affects statements and changes in statements related to the crime when applied to the strategic evidence presentation technique. The mock crime task was divided into three stages, and all participants performed the same task without conditions. After watching a short hacking video task, they accessed the given site, entered hacking codes, and installed hacking programs using basic coding. They finished by retrieving documents containing key information and related content about hacking. The dependent variable was the change in statements, and it was confirmed how the statements changed at each stage of the interview. The results of the study showed that the stronger the evidence presented, the more changes in statements were made, and the more strategically the evidence was presented, the more crimes were admitted. However, the interaction effect according to the strength of evidence and the strategic evidence presentation technique was not significant. Finally, based on these results, the significance and limitations of the strength of evidence and the strategic evidence presentation technique were discussed, and suggestions were made for future research directions.

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