| Item | Count | Percent |
| Total | 49 | 100.0 |
| Weak or insufficient admissible evidence | 13 | 26.5 |
| Lack of investigative or prosecutive resources | 7 | 14.3 |
| Lack of evidence of criminal intent | 4 | 8.2 |
| Agency request | 3 | 6.1 |
| Civil, admin or other disciplinary alternatives | 2 | 4.1 |
| No federal offense evident | 1 | 2.0 |
| Suspect to be prosecuted by other authorities | 1 | 2.0 |
| All other | 18 | 36.7 |