When Miranda was decided 34 years ago, police and prosecutors were upset, to say the least. They thought law enforcement would be hampered and guilty criminals would run rings around the system as they went free in huge numbers. All those fears have proved to be groundless. Law predictable for all people Miranda presents a simple and direct guideline for police. It is a necessary control on the possible excesses of police actions.
Officers generally perform better when the rules are clear and the expectations are unambiguous.
Well-trained and supervised police officers and detectives can work with Miranda and stay in conformity with judicial decisions governing its use. The law is supposed to be predictable for all people. It is critical that the law is also predictable for those who are charged with its enforcement. It would be a phenomenal undertaking to retrain 800,000 cops and tens of thousands of lawyers, both prosecutors and defense, and place them all in a world of uncertainty. Standards would then vary from state to state, and we would return to an era of judicial decisions that would leave all participants in the criminal justice system with more questions than answers.