Projects per year
Abstract
The Domestic Abuse, Stalking and Honour Based Violence (DASH) form is
a standardised risk assessment implemented across all UK police forces. It is intended to facilitate an officers structured professional judgment about the risk a victim faces of serious harm at the hand of their abuser. Until now, it has been an open question whether this tool works in practice. Here we present the largest scale European study, making the case that the risk assessment tool is underperforming. Each element of the DASH questionnaire is, at best, weakly predictive of revictimisation. Officer risk predictions based on DASH are little better than random and a logistic regression model that predicts the same outcome using DASH only provides modest improvement in performance.
a standardised risk assessment implemented across all UK police forces. It is intended to facilitate an officers structured professional judgment about the risk a victim faces of serious harm at the hand of their abuser. Until now, it has been an open question whether this tool works in practice. Here we present the largest scale European study, making the case that the risk assessment tool is underperforming. Each element of the DASH questionnaire is, at best, weakly predictive of revictimisation. Officer risk predictions based on DASH are little better than random and a logistic regression model that predicts the same outcome using DASH only provides modest improvement in performance.
Original language | English |
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Pages (from-to) | 1013-1034 |
Journal | The British Journal of Criminology |
Volume | 59 |
Issue number | 5 |
Early online date | 13 Jun 2019 |
DOIs | |
Publication status | Published - 13 Jun 2019 |
Keywords
- domestic abuse
- risk assessment
- police
- predictive policing
- machine learning
Research Beacons, Institutes and Platforms
- Manchester Urban Institute
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- 1 Finished
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Understanding and improving risk assessment on domestic abuse cases
Medina, J., Brown, G. & Miles, C.
1/06/16 → 30/11/18
Project: Research