Final answer:
The Conviction Integrity Unit's goal is to secure fairness and accuracy in convictions by examining post-conviction cases for potential miscarriages of justice.
Step-by-step explanation:
The Conviction Integrity Unit (CIU) established by the Dallas County district attorney in 2007 had a primary goal to ensure the fairness and accuracy of convictions. The overarching aim was to prevent, identify, and rectify wrongful convictions through post-conviction reviews. By examining cases where there might be evidence of a possible miscarriage of justice, the CIU works to maintain the integrity of the criminal justice system, thereby safeguarding the rights afforded in the U.S. Constitution and the principles outlined by the Department of Justice.