According to the Center for Prosecutor Integrity, nearly half of all wrongful convictions arise from the prosecutorial misconduct or the misconduct of other officials. Steve Weinburg has broken down types of prosecutorial misconduct:
- Courtroom misconduct (making inappropriate or inflammatory comments in the presence of the jury; introducing or attempting to introduce inadmissible, inappropriate or inflammatory evidence; mischaracterizing the evidence or the facts of the case to the court or jury; committing violations pertaining to the selection of the jury; or making improper closing arguments);
- Mishandling of physical evidence (hiding, destroying or tampering with evidence, case files or court records);
- Failing to disclose exculpatory evidence;
- Threatening, badgering or tampering with witnesses;
- Using false or misleading evidence;
- Harassing, displaying bias toward, or having a vendetta against the defendant or defendant’s counsel (including selective or vindictive prosecution, which includes instances of denial of a speedy trial); and
- Improper behavior during grand jury proceedings.