Each year juries decide thousands of cases. Although the majority of these cases are not settled by juries, predictions about juries frequently influence the decision whether or not to pursue a jury trial. As far in advance of the trial date as is practical the pre-trial investigation of prospective jurors is an absolute must in every case that can financially afford it. Pre-trial Investigation has become much more complex with the use of the internet and the depth of the investigation varies according to finances available. Since the internet is ever evolving the sources available will not be discussed here but a good beginning point would be a “Google People Search” , “Zabasearch”, and “Spokeo”. This book will begin with an analysis of the pre-trial investigation of the jury panel and the data that should be collected. It will conclude with non-verbal and body cues of the jurors.