The Importance of Plea Bargaining in Criminal Trials Screeech! That is the sound of our court system coming to a grinding halt, if plea bargaining were no longer utilized. Not only does plea bargaining save taxpayers an enormous amount of money, it often provides the evidence for a conviction and allows public defenders and other court officials to concentrate their limited resources on more important or difficult cases. Some people may believe that plea bargaining with criminals is wrong. The entire basis of the argument against plea bargaining says that criminals should not testify or have anything