| Business | Phone |
| State Attorney 121 Elm St, New Haven 6510 | (203) 789-7455 |
| State Attorney 235 Church St, New Haven 6510 | (203) 503-6823 |
| State Attorney Office 246 Church St, New Haven 6510 | (203) 789-7801 |
| Public Defender 121 Elm St, New Haven 6510 | (203) 789-7458 |
| Public Defender 235 Church St, New Haven 6510 | (203) 503-6818 |
| Public Defender Juvenile 239 Whalley Ave, New Haven 6511 | (203) 786-0330 |