| Item | Count | Percent |
| Total | 39 | 100.0 |
| Lack of evidence of criminal intent | 13 | 33.3 |
| Weak or insufficient admissible evidence | 5 | 12.8 |
| No federal offense evident | 4 | 10.3 |
| Suspect to be prosecuted by other authorities | 4 | 10.3 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 2 | 5.1 |
| Agency request | 1 | 2.6 |
| Civil, admin or other disciplinary alternatives | 1 | 2.6 |
| Lack of investigative or prosecutive resources | 1 | 2.6 |
| Minimal federal interest or no deterrent value | 1 | 2.6 |
| All other | 7 | 17.9 |