The crime control model of the justice system is the model that is tough on crime. This model favors the police and the swift and efficient conviction of the guilty. In this model police are seen as capable of doing their job correctly and efficiently and judges have a mindset that all criminals brought before them are guilty since the majority are.
The due process model of the justice system is to protect the rights of the accused. The due process model wants to ensure that the right of the accused are not violated and to ensure police did not use excessive force or illegally obtain evidence. This process also provides counsel to anyone who cannot afford representation. In this model the judges operate on an assumption that we are innocent until proven guilty.
I believe the crime control model is a more effective model of justice. The focal point of the justice system has to be to catch criminals and provide evidence that finds them guilty. If every person accused of a crime can plead insanity and the courts can find fault in every case brought before them then criminals can think that they can get crimes and the police become less efficient. I am not saying that due process does not have it's place. Everyone deserves the right to a fair trail. If a case is presented to the courts where the evidence overwhelmingly proves that the accused is guilty and they get off on some technicality and the accused goes out and commits another crime because they got away with it, then it stops being justice and becomes a flaw in the judicial system.