| Item | Count | Percent |
| Total | 206 | 100.0 |
| Weak or insufficient admissible evidence | 96 | 46.6 |
| Suspect to be prosecuted by other authorities | 25 | 12.1 |
| Lack of investigative or prosecutive resources | 17 | 8.3 |
| No federal offense evident | 17 | 8.3 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 7 | 3.4 |
| Office policy/Dept policy | 4 | 1.9 |
| Lack of evidence of criminal intent | 3 | 1.5 |
| Agency request | 1 | 0.5 |
| All other | 36 | 17.5 |