| Item | Count | Percent |
| Total | 411 | 100.0 |
| Weak or insufficient admissible evidence | 71 | 17.3 |
| Lack of evidence of criminal intent | 61 | 14.8 |
| Suspect to be prosecuted by other authorities | 61 | 14.8 |
| No federal offense evident | 52 | 12.7 |
| Suspect being prosecuted on other charges (e.g., UFAPs) | 39 | 9.5 |
| Agency request | 31 | 7.5 |
| Minimal federal interest or no deterrent value | 18 | 4.4 |
| Office policy/Dept policy | 14 | 3.4 |
| Lack of investigative or prosecutive resources | 12 | 2.9 |
| Civil, admin or other disciplinary alternatives | 6 | 1.5 |
| All other | 46 | 11.2 |
