| Item | Count | Percent |
| Total | 8 | 100.0 |
| Lack of evidence of criminal intent | 2 | 25.0 |
| Suspect to be prosecuted by other authorities | 2 | 25.0 |
| Weak or insufficient admissible evidence | 2 | 25.0 |
| Civil, admin or other disciplinary alternatives | 1 | 12.5 |
| Lack of investigative or prosecutive resources | 1 | 12.5 |