| Item | Count | Percent |
| Total | 272 | 100.0 |
| Lack of evidence of criminal intent | 68 | 25.0 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 48 | 17.6 |
| Agency request | 46 | 16.9 |
| Suspect to be prosecuted by other authorities | 37 | 13.6 |
| Office policy/Dept policy | 21 | 7.7 |
| Weak or insufficient admissible evidence | 15 | 5.5 |
| Lack of investigative or prosecutive resources | 14 | 5.1 |
| Minimal federal interest or no deterrent value | 5 | 1.8 |
| No federal offense evident | 1 | 0.4 |
| All other | 17 | 6.3 |