A number of research papers have been quoted in this guidance.
References
Andersen, J. and Gustafsberg, H. (2016) A training method to improve police use of force decision making: A randomized controlled trial. SAGE Open, 6(2), pp 1–13.
Mazerolle, L., Bennett, S., Davis, J., Sargeant, E. and Manning, M. (2013) Legitimacy in policing: A systematic review. Campbell Systematic Reviews, 9(1), pp 1–147.
Salas, E., Tannenbaum, S. I., Kraiger, K. and Smith-Jentsh, K.A. (2012) The science of training and development in organisations: What matters in practice. Psychological Science in the Public Interest, 13(2), pp 74–101.
Wheller, L., Quinton, P., Fildes, A. and Mills, A. (2013) The Greater Manchester Police procedural justice training experiment: The impact of communication skills training on officers and victims of crime. Ryton-on-Dunsmore: College of Policing.
Wheller, L. and Morris, J. (2010) What works in training, behaviour change and implementing guidance? London: National Policing Improvement Agency.