| Item | Count | Percent |
| Total | 21 | 100.0 |
| Weak or insufficient admissible evidence | 6 | 28.6 |
| Minimal federal interest or no deterrent value | 4 | 19.0 |
| Agency request | 3 | 14.3 |
| Lack of evidence of criminal intent | 3 | 14.3 |
| Lack of investigative or prosecutive resources | 1 | 4.8 |
| Suspect to be prosecuted by other authorities | 1 | 4.8 |
| All other | 3 | 14.3 |