| Item | Count | Percent |
| Total | 43 | 100.0 |
| Weak or insufficient admissible evidence | 18 | 41.9 |
| Lack of investigative or prosecutive resources | 9 | 20.9 |
| Lack of evidence of criminal intent | 7 | 16.3 |
| Suspect to be prosecuted by other authorities | 4 | 9.3 |
| Minimal federal interest or no deterrent value | 1 | 2.3 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 1 | 2.3 |
| All other | 3 | 7.0 |