“…Indeed, less than a handful of studies have partially tested theoretical arguments proposed by Klinger, and the results have been mixed and, in some cases, contradictory to the theory tested. For example, one study (Johnson & Olschansky, 2010) found that district crime rates were inversely related to the number of vehicle stops, positively associated with the number of arrests, and weakly connected to the number of vehicle searches, traffic tickets, and misdemeanor arrests. A second study (Sobol, 2010a) found a positive relationship between district crime and vigor, but the significant connection disappeared when seriousness of the offense and other controls were entered into the analysis.…”