| Item | Count | Percent |
| Total | 177 | 100.0 |
| Weak or insufficient admissible evidence | 88 | 49.7 |
| Lack of investigative or prosecutive resources | 47 | 26.6 |
| Agency request | 10 | 5.6 |
| Suspect to be prosecuted by other authorities | 7 | 4.0 |
| Office policy/Dept policy | 6 | 3.4 |
| No federal offense evident | 5 | 2.8 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 3 | 1.7 |
| Lack of evidence of criminal intent | 2 | 1.1 |
| Minimal federal interest or no deterrent value | 1 | 0.6 |
| All other | 8 | 4.5 |