| Item | Count | Percent |
| Total | 59 | 100.0 |
| Weak or insufficient admissible evidence | 31 | 52.5 |
| Lack of evidence of criminal intent | 9 | 15.3 |
| Civil, admin or other disciplinary alternatives | 6 | 10.2 |
| No federal offense evident | 3 | 5.1 |
| Suspect to be prosecuted by other authorities | 3 | 5.1 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 2 | 3.4 |
| Agency request | 1 | 1.7 |
| All other | 4 | 6.8 |