K9 investigation errors

"Internationally recognized dog handlers Resi Gerritsen and Ruud Haak discuss a range of K9 investigation errors from past and present, including examples of poor technique and outright fraud from K9 investigators in Europe and North America. The authors also provide instruction for how to train dogs for scent-identification lineups using the Dutch protocol, which minimizes the chances of error or fraud. Make sure your work holds up in court--train and deploy your dogs with the highest possible professional standards."--