| Item | Count | Percent |
| Total | 121 | 100.0 |
| Lack of evidence of criminal intent | 47 | 38.8 |
| No federal offense evident | 28 | 23.1 |
| Weak or insufficient admissible evidence | 26 | 21.5 |
| Minimal federal interest or no deterrent value | 8 | 6.6 |
| Lack of investigative or prosecutive resources | 1 | 0.8 |
| All other | 11 | 9.1 |