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Development of a statement credibility assessment technique for video-recorded interviews

Research Project

Project/Area Number 16K00215
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Cognitive science
Research InstitutionAoyama Gakuin University

Principal Investigator

Takagi Kotaro  青山学院大学, 社会情報学部, 教授 (30272488)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords供述信用性評価 / 取調べの可視化 / 録画記録 / 説明の不十分さ / スキーマ・アプローチ / 言語化の回避 / 非言語化の力動・パターン / 供述 / 体験性 / 身体 / 法心理学 / 取調べ録画記録 / 非言語的情報
Outline of Final Research Achievements

The purpose of this study is to develop a statement credibility assessment technique that makes effective use of the video-recorded interrogations. In the first phase of the study, we explored the possibility of using physical representations, such as gestures, using mock interrogations. However, we could not find a valid indicator. In the next phase, we re-examined the cases of credibility assessment (about 40 cases) to determine the significant indicators. As a result, we found that the patterns of distribution of "insufficient explanations" such as "dilution of expression" and "avoidance of reference" are likely to be a valid indicator of statement credibility assessment.

Academic Significance and Societal Importance of the Research Achievements

近年、被疑者の取調べや目撃者、被害者からの事情聴取の録画記録が刑事裁判において利用される機会が増加している。これらの録画記録は、裁判官や裁判員が取調べや事情聴取の具体的な様子を把握するのに有効であるが、録画記録特有のバイアスによって供述の評価に偏りが生じる危険性も同時に指摘されてきた。本研究の成果は、刑事裁判において録画記録を参照する裁判官や裁判員に検討の有効な着眼点を示すと同時に、録画記録を用いた専門的な供述信用性評価に一定の指針を与えるものであり、その社会的・学術的意義は高いものと考えられる。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (6 results)

All 2020 2019 2018 2016

All Journal Article (2 results) Presentation (3 results) (of which Int'l Joint Research: 3 results) Book (1 results)

  • [Journal Article] 説明の部品化と証拠のネットワーク:「ナラティヴ工場」としての法廷2020

    • Author(s)
      高木光太郎
    • Journal Title

      N: ナラティブとケア

      Volume: 11 Pages: 48-54

    • Related Report
      2019 Annual Research Report
  • [Journal Article] アルコール酩酊および供述詳細化に着目した供述心理学的検討の事例2019

    • Author(s)
      高木光太郎
    • Journal Title

      季刊刑事弁護

      Volume: 100 Pages: 58-60

    • Related Report
      2019 Annual Research Report
  • [Presentation] Toward a non-representational approach to individual experience: Problems of representationalism in memory studies.2019

    • Author(s)
      Kotaro Takagi
    • Organizer
      the 18th biennial conference of International Society for Theoretical Psychology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Toward a non-representational approach to individual experience: Problems of representationalism in memory studies2019

    • Author(s)
      Kotaro Takagi
    • Organizer
      The 18th biennial conference of International Society for Theoretical Psychology
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Current progress of confession credibility assessment research in Japan2016

    • Author(s)
      Kotaro Takagi
    • Organizer
      31st International Congress of Psychology
    • Place of Presentation
      Pacifico Yokohama
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Book] Handbook of Culture and Memory2018

    • Author(s)
      B. Wagoner et al.
    • Total Pages
      346
    • Publisher
      Oxford University Press
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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