| Item | Count | Percent |
| Total | 27 | 100.0 |
| Weak or insufficient admissible evidence | 12 | 44.4 |
| Suspect to be prosecuted by other authorities | 8 | 29.6 |
| Lack of evidence of criminal intent | 2 | 7.4 |
| Minimal federal interest or no deterrent value | 2 | 7.4 |
| Agency request | 1 | 3.7 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 1 | 3.7 |
| All other | 1 | 3.7 |