RT Article T1 Where did it all go wrong? Implementation failure—and more—in a field experiment of procedural justice policing JF Journal of experimental criminology VO 13 IS 3 SP 321 OP 345 A1 MacQueen, Sarah A2 Bradford, Ben LA English YR 2017 UL https://krimdok.uni-tuebingen.de/Record/1748078445 AB This paper presents the findings from a retrospective qualitative process evaluation to the Scottish Community Engagement Trial (ScotCET). The study explores the unanticipated results of a randomized field trial testing the effect of ‘procedurally just’ modes of road policing on public perceptions of police. The ScotCET intervention failed to produce the hypothesized results, producing instead significant, and unexplained, negative effects on key aspects of public perception. The present study seeks to examine, from the perspectives of officers implementing the experiment, what the impacts (intended or otherwise) of participation were. K1 Experimental research K1 Organizational justice K1 Police culture K1 Proced Implementation failure DO 10.1007/s11292-016-9278-7