James, A and Carr, R (2025) Overburdened and undervalued: inside the world of modern detectives. The Police Foundation.

James, A, Silverstone, D, Karecha, J, Kelly, T and Carr, R (2025) A report for the National Police Chiefs Council (NPCC) on innovative programmes for the recruitment and training of investigators, currently in operation in police forces in England & Wales. Technical Report. Liverpool John Moores University, LJMU SJS.

James, A, Pajon, L, O'Brien, F and Carr, R (2024) Whodunnit? Do officers have the skills they need to answer that eternal question? Technical Report. Liverpool John Moores University.

Carr, R, Slothower, M and Parkinson, J (2017) Do Gang Injunctions Reduce Violent Crime? Four Tests in Merseyside, UK. Cambridge Journal of Evidence-Based Policing, 1 (4). pp. 195-210. ISSN 2520-1344