| Item | Count | Percent |
| Total | 28 | 100.0 |
| Lack of evidence of criminal intent | 15 | 53.6 |
| Suspect to be prosecuted by other authorities | 8 | 28.6 |
| Agency request | 1 | 3.6 |
| Lack of investigative or prosecutive resources | 1 | 3.6 |
| Minimal federal interest or no deterrent value | 1 | 3.6 |
| Weak or insufficient admissible evidence | 1 | 3.6 |
| All other | 1 | 3.6 |