A private investigator serves a crucial role in a criminal defense investigation. That role is to find witnesses and evidence that will establish reasonable doubt. Reasonable doubt shows the jury that there is reason to believe that the defendant is not actually guilty of committing a crime. When an attorney uses a private investigator in a criminal defense investigation, the investigator will be sure to understand the charges and the laws that relate to the crime. Once there's an understanding of the case in question, the private investigator will analyze the relevant materials that the defense team has received from the prosecutor. During a criminal defense investigation, a private investigator can also re-visit the crime scene and see if anything was overlooked. He or she may also interview witnesses to see if their stories have changed or to verify that they do not have anything else that motivated their statements against the defendant. Contact Olivieri Investigators today and get to the bottom of even the most difficult case.