| Item | Count | Percent |
| Total | 32 | 100.0 |
| Lack of investigative or prosecutive resources | 14 | 43.8 |
| Suspect to be prosecuted by other authorities | 5 | 15.6 |
| No federal offense evident | 3 | 9.4 |
| Weak or insufficient admissible evidence | 3 | 9.4 |
| Agency request | 1 | 3.1 |
| Lack of evidence of criminal intent | 1 | 3.1 |
| All other | 5 | 15.6 |