Effects of motivation and demography on the quantitative plausibility of the trojan horse defence against possession of child pornography

Richard E. Overill; Jantje A M Silomon; Kam Pui Chow; Hayson Tse

Effects of motivation and demography on the quantitative plausibility of the trojan horse defence against possession of child pornography

Richard E. Overill^*, Jantje A M Silomon, Kam Pui Chow, Hayson Tse

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The Enhanced Complexity Model (ECM) developed previously has been further extended to produce a Motivationally Enhanced Complexity Model (MECM) which enables the degree of motivation, capability and opportunity of a hypothetical Trojan Horse author to be included in quantifying the relative plausibility of competing explanations for the existence of uncontested digital evidence. This new model has been applied to the case of the Trojan Horse defence (THD) against the possession of child pornography. Our results demonstrate that the THD in this case cannot be plausibly sustained unless it can be shown that an 'off-the-shelf' (OTS) Trojan Horse for this task is available and it is not detectable by the target computer, at the material time.

Original language	English
Pages (from-to)	9-15
Number of pages	7
Journal	Journal of Harbin Institute of Technology (New Series)
Volume	21
Issue number	6
Publication status	Published - 1 Dec 2014

Keywords

Child pornography
Complexity
Digital forensic evidence
Posterior odds
Quantitative plausibility metrics
Trojan Horse defence

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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AU - Silomon, Jantje A M

AU - Chow, Kam Pui

AU - Tse, Hayson

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AB - The Enhanced Complexity Model (ECM) developed previously has been further extended to produce a Motivationally Enhanced Complexity Model (MECM) which enables the degree of motivation, capability and opportunity of a hypothetical Trojan Horse author to be included in quantifying the relative plausibility of competing explanations for the existence of uncontested digital evidence. This new model has been applied to the case of the Trojan Horse defence (THD) against the possession of child pornography. Our results demonstrate that the THD in this case cannot be plausibly sustained unless it can be shown that an 'off-the-shelf' (OTS) Trojan Horse for this task is available and it is not detectable by the target computer, at the material time.

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KW - Complexity

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KW - Posterior odds

KW - Quantitative plausibility metrics

KW - Trojan Horse defence

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ER -

Effects of motivation and demography on the quantitative plausibility of the trojan horse defence against possession of child pornography

Abstract

Keywords

UN SDGs

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