| Item | Count | Percent |
| Total | 43 | 100.0 |
| Weak or insufficient admissible evidence | 25 | 58.1 |
| No federal offense evident | 2 | 4.7 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 2 | 4.7 |
| Office policy/Dept policy | 1 | 2.3 |
| Suspect to be prosecuted by other authorities | 1 | 2.3 |
| All other | 12 | 27.9 |