I only briefly scanned the published paper [1], but I saw no mention made about whether or not the officers knew this study was happening to their teams. Does a

I only briefly scanned the published paper [1], but I saw no mention made about whether or not the officers knew this study was happening to their teams. Does anyone know if the study was blind? [1] http://bwc.thelab.dc.gov/static/files/supplementary-materials.pdf http://bwc.thelab.dc.gov/static/files/supplementary-material...