| Item | Count | Percent |
| Total | 59 | 100.0 |
| Weak or insufficient admissible evidence | 14 | 23.7 |
| Lack of evidence of criminal intent | 12 | 20.3 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 6 | 10.2 |
| Agency request | 3 | 5.1 |
| No federal offense evident | 3 | 5.1 |
| Lack of investigative or prosecutive resources | 2 | 3.4 |
| Office policy/Dept policy | 2 | 3.4 |
| Suspect to be prosecuted by other authorities | 2 | 3.4 |
| Minimal federal interest or no deterrent value | 1 | 1.7 |
| All other | 14 | 23.7 |