| Item | Count | Percent |
| Total | 21 | 100.0 |
| Office policy/Dept policy | 7 | 33.3 |
| Weak or insufficient admissible evidence | 4 | 19.0 |
| Lack of evidence of criminal intent | 3 | 14.3 |
| Suspect to be prosecuted by other authorities | 3 | 14.3 |
| Minimal federal interest or no deterrent value | 1 | 4.8 |
| No federal offense evident | 1 | 4.8 |
| All other | 2 | 9.5 |