| Item | Count | Percent |
| Total | 90 | 100.0 |
| Weak or insufficient admissible evidence | 79 | 87.8 |
| Agency request | 3 | 3.3 |
| Civil, admin or other disciplinary alternatives | 2 | 2.2 |
| Lack of evidence of criminal intent | 1 | 1.1 |
| No federal offense evident | 1 | 1.1 |
| Suspect to be prosecuted by other authorities | 1 | 1.1 |
| All other | 3 | 3.3 |