| Business | Phone |
| Federal Bureau-Investigation 1961 Stout St # 1823, Denver 80294 | (303) 629-7171 |
| Us Alcohol Tobacco & Firearms 1700 Broadway # 1010, Denver 80290 | (303) 844-7570 |
| Us Marshal Dept 1929 Stout St # C324, Denver 80294 | (303) 844-2801 |
| Us Secret Svc 1660 Lincoln St # 1430, Denver 80264 | (303) 866-1010 |