Our Publications

Core AI

Olphin, T.P.A. (2025) Core AI Series: Likely Risks of Machine Learning and AI tools in the Public Sector, Manchester, UK: ResearchCore

What Works

Olphin, T., Gidman, D. & Rai, B. (2025) What Works Series: A Randomised Controlled Trial of a Custody Navigator Programme, Thames Valley Violence Prevention Partnership: Kidlington, UK.

What Works

Bekaert, S., Olphin, T., Massie, R. & Norris, J. (2025) What Works Series: Operation Paramount – Natural Experiment and Descriptive multi-methods analysis of children affected by parental imprisonment and the people who care for them between 2021 and 2024, Thames Valley Violence Prevention Partnership: Kidlington, UK.

What Works

Olphin, T, Miller, O, Portnell N, Prescott-Mayling, L, James, K, Hewitt, J, Young, C. (2025) What Works Series: Hotspots Policing - Combined findings from two randomised controlled trials of hotspots policing in Thames Valley, Thames Valley Violence Prevention Partnership: Kidlington, UK

Journal Article

Olphin, T. P., Miller, O., Portnell, N., Prescott-Mayling, L., Young, C., & Hewitt, J. (2025). Testing application-based tasking and hotspots policing in a geographically large, non-metropolitan police service: a two-in-one randomised trial. Cambridge Journal of Evidence-Based Policing, 9(1), 2.

What Works

Olphin, T., Massie, R., Miller, O. & Blakemore, R. (2025) What Works Series: Operation Paramount - Statistical analysis of children in Oxfordshire affected by parental imprisonment, Thames Valley Violence Prevention Partnership: Kidlington, UK

What Works

Barrett, J., Olphin, T., Chambers, P. & Massie, R. (2025) Intervention Report: SEN Summer Activities Programme, Thames Valley Violence Prevention Partnership: Kidlington, UK

What Works

Stevens J. & Olphin, T. (2024) What Works Series: NEET to EET Mentoring Rapid Evidence Review, Thames Valley Violence Prevention Partnership: Kidlington, UK

What Works

Olphin, T. & Reed, K. (2024) What Works Series: School Navigators Project, Thames Valley Violence Prevention Partnership: Kidlington, UK

What Works

Olphin, T., Bottomley, S., Webb, A. & Stock, M. (2024) What Works Series: Focused Deterrence 12 Month Findings, Thames Valley Violence Prevention Partnership: Kidlington, UK

Presentation

Olphin, T.P.A., (2023). Research Project Lifecycle: A Structured Approach to Conducting Research in the Public Sector, Reading, UK: Thames Valley Violence Reduction Unit © Crown Copyright 2023 as presented in Olphin, T.P.A. (2024) Using the Research Project Lifecycle to Design and Run Small Scale RCTs, Youth Endowment Fund Virtual Learning Cafe, 16th July 2024

Book Chapter

Olphin, T., & Mueller-Johnson, K. (2019). Targeting factors that predict clearance of non-domestic assaults. In Coupe, R.T., Ariel, B. & Mueller-Johnson, K. (Eds.) Crime Solvability Factors: Police Resources and Crime Detection, 149-174

Book Chapter

Olphin, T., & Coupe, R. T. (2019). Existing research on solvability. In Coupe, R.T., Ariel, B. & Mueller-Johnson, K. (Eds.) Crime solvability factors: Police resources and crime detection, 15-34

Journal Article

Olphin, T., Bandyopadhyay, S. & Banerjee, A. (2019). Solving Burglary Offences: Building a Model to Predict Clearance of Burglary Following Initial Investigation, Policing: A Journal of Policy and Practice, 15(2), 832-847

Thesis

Olphin, T. W. L. (2015). Solving violent crime: Targeting factors that predict clearance of non-domestic violent offences. Unpublished MSt. thesis, University of Cambridge

Journal Article

Cumming, J., Olphin, T., & Law, M. (2007). Self-reported psychological states and physiological responses to different types of motivational general imagery. Journal of Sport and Exercise Psychology, 29(5), 629-644