| Business | Phone |
| Calvert County Sheriff 175 Main St, Prince Frederick 20678 | (410) 535-3496 |
| Calvert County Sheriff Dept 30 Church St, Prince Frederick 20678 | (301) 855-1194 |
| County Sheriff 175 Main St, Prince Frederick 20678 | (410) 535-2800 |
| Crime Solvers Of Calvert Cnty 30 Church St, Prince Frederick 20678 | (410) 535-2880 |