Nick, good article.  The Brady Rule or exculpatory evidence (evidence favorable to the defendant) cannot be with held by the prosecution.  This principle is essential to a fair and honest trial. A prosecutor would not last long in the business by routinely withhold evidence.  Although, attorney's are not highly regarded... they have rules that must be followed.  Each prosecutor has a different way of presenting his case.  Outcomes at a trial can be very different depending on the quality of the prosecution. Justice is very illusive.  A trial does not guarantee justice or fairness.  Just a simple trial of before peers (or by a judge). Please remember what anything that you say can and will be used against you.  There is nothing that says anything can and will be used in your favor.  Police are not required to speak in your defense unless you call them as your witness. You tell a detective that you loved your wife but you killed her. All he is going to say is that you killed her.