| Business | Phone |
| Call's Police Signal Corp 69 Washington Ave, Chelsea 2150 | (617) 884-0014 |
| Chelsea Police Chief 19 Park St, Chelsea 2150 | (617) 660-1510 |
| Chelsea Police Dept 19 Park St, Chelsea 2150 | (617) 660-1555 |
| Chelsea Police Detective Bur 19 Park St, Chelsea 2150 | (617) 660-1520 |
| Chelsea Police Records Bureau 19 Park St, Chelsea 2150 | (617) 660-1502 |
| Chief Of Police 180 Crescent Ave, Chelsea 2150 | (617) 889-8610 |
| Police Dept-Detective Bureau 180 Crescent Ave, Chelsea 2150 | (617) 889-8600 |
| Police Dept-Records Bureau 19 Park St, Chelsea 2150 | (617) 889-8606 |