Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/30227
Appears in Collections:Psychology Conference Papers and Proceedings
Author(s): Frowd, Charlie D
Portch, Emma
Killeen, Abigail
Mullen, Lydia
Martin, Alexander J
Hancock, Peter J B
Contact Email: p.j.b.hancock@stir.ac.uk
Title: EvoFIT Facial composite images: A detailed assessment of impact on forensic practitioners, police investigators, victims, witnesses, offenders and the media
Citation: Frowd CD, Portch E, Killeen A, Mullen L, Martin AJ & Hancock PJB (2019) EvoFIT Facial composite images: A detailed assessment of impact on forensic practitioners, police investigators, victims, witnesses, offenders and the media. In: 8th International Conference on Emerging Security Technologies, EST 2019. Eighth International Conference on Emerging Security Technologies (EST 2019), Colchester, 22.07.2019-24.07.2019. Piscataway, NJ, USA: Institute of Electrical and Electronics Engineers Inc. https://doi.org/10.1109/EST.2019.8806211
Issue Date: 2019
Conference Name: Eighth International Conference on Emerging Security Technologies (EST 2019)
Conference Dates: 2019-07-22 - 2019-07-24
Conference Location: Colchester
Abstract: This paper assesses use of the EvoFIT facial composite system by police practitioners in the UK and overseas. Results reveal that this forensic system is used extensively: a total of 2,440 times since September 2013. With a suspect identification rate of 60% and a conviction rate of 17%, the impact of this forensic technique is appreciable for helping the police to identify offenders. It was also found that empirically-driven enhancement techniques were used frequently by police practitioners-including use of detailed context reinstatement and holistic techniques during interview, and asking the witness to focus on the eye-region during construction. Research evaluating EvoFIT images published in the media also revealed that composites were produced mostly for serious offences, in particular for sexual crimes. In addition, the vast majority were of male offenders, in their early 30's; victims were female (aged mid 20's to mid 30's); these demographics were similar to composites emerging from another recognition system, EFIT-V / 6. Although this exercise revealed that EvoFIT composites were sometimes published using a more optimal stretched mode, some were presented in a way that did not faithfully represent the constructed image, with the external features cropped. In conclusion, the EvoFIT system is clearly being deployed frequently, with appreciable impact, in the fight against crime.
Status: AM - Accepted Manuscript
Rights: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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