| Business | Phone |
| Us Drug Enforcement Admin New Haven 6511 | (203) 497-5200 |
| Us Marshal Dept 141 Church St, New Haven 6510 | (203) 773-2107 |
| Us Secret Svc 265 Church St # 1201, New Haven 6510 | (203) 865-2449 |
| Federal Bureau-Investigation 150 Court St, New Haven 6510 | (203) 777-6311 |
| Federal Bureau-Investigation 600 State St, New Haven 6511 | (203) 777-6311 |