| Item | Count | Percent |
| Total | 16 | 100.0 |
| Minimal federal interest or no deterrent value | 5 | 31.3 |
| Weak or insufficient admissible evidence | 5 | 31.3 |
| Lack of evidence of criminal intent | 4 | 25.0 |
| Agency request | 1 | 6.3 |
| Suspect to be prosecuted by other authorities | 1 | 6.3 |