| Item | Count | Percent |
| Total | 36 | 100.0 |
| Weak or insufficient admissible evidence | 10 | 27.8 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 6 | 16.7 |
| Suspect to be prosecuted by other authorities | 6 | 16.7 |
| Agency request | 4 | 11.1 |
| Lack of evidence of criminal intent | 4 | 11.1 |
| Minimal federal interest or no deterrent value | 1 | 2.8 |
| No federal offense evident | 1 | 2.8 |
| All other | 4 | 11.1 |