| Item | Count | Percent |
| Total | 191 | 100.0 |
| Weak or insufficient admissible evidence | 38 | 19.9 |
| No federal offense evident | 37 | 19.4 |
| Lack of evidence of criminal intent | 33 | 17.3 |
| Suspect to be prosecuted by other authorities | 23 | 12.0 |
| Minimal federal interest or no deterrent value | 22 | 11.5 |
| Agency request | 10 | 5.2 |
| Lack of investigative or prosecutive resources | 7 | 3.7 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 7 | 3.7 |
| All other | 14 | 7.3 |