• Calvert County Detention Center, 325 Stafford Road, Barstow, MD 20610, 410-535-4300.
• Release terms come from the commissioner at 200 Duke Street, Prince Frederick, 443-486-4010.

Use VINELink for custody status and free alerts, or call the jail. For charges and court dates, use Case Search.

The commissioner sets terms, and a judge reviews them if needed. Our bail guide covers each step.

Ask the Calvert County Sheriff's Office at 410-535-2800; its Warrant Unit serves warrants and summonses from both courts. The Sheriff's Most Wanted page shows only a few people, so a phone call is the surer check.

Someone planning to surrender at Barstow, at the detention center on Stafford Road, should bring ID and contact a lawyer first. A warrant that came from a skipped court date is sometimes solved by the clerk picking a later one: Circuit Court, 175 Main Street, Prince Frederick, 410-535-1600; District Court, 200 Duke Street, 443-486-4000.

Maryland's court case search shows filed charges and hearing dates but is not a list of open warrants.

Prince Frederick's commissioner, 443-486-4010, sets terms after booking. Options: own recognizance, conditions, or a secured bond. Anyone still at Barstow gets a District Court review next court day. See our local bail page for payment steps.

Use VINELink: pick Maryland, find the Barstow record, then register a phone or email. Calvert release or transfer notices are free.

A District Court commissioner, within 24 hours, at 200 Duke Street, 443-486-4010. The commissioner reads each charge, explains the right to counsel, checks public defender eligibility and sets release terms. Still held after that? A judge at 200 Duke Street, 443-486-4000, reviews it when court next sits. Our court process guide covers later dates.

Both courts sit in Prince Frederick; check Case Search, then call. District Court, 200 Duke Street: 443-486-4000. Circuit Court, 175 Main Street: 410-535-1600. A federal charge from Calvert is heard instead at the U.S. District Court, 6500 Cherrywood Lane, Greenbelt, 301-344-0660.

The public defender, 200 Duke Street, Room 2000, 443-550-6800, once DC-099 is approved.

Prince Frederick cases are on Maryland Judiciary Case Search; add % to a partial last name. For papers, call 410-535-1600. Got a Prince Frederick citation or summons for a jailable charge? A preliminary inquiry follows; with no time listed, appear within five business days.

Visits at the Barstow jail are by appointment only. Call 410-535-4300, extension 8944, on a Monday or Tuesday between 8 a.m. and 2 p.m. to book. Visits run Saturday and Sunday from 8 a.m. to 8 p.m. Each person gets one 30-minute visit a week, with up to four visitors, and the group cannot swap people partway through. Everyone, children too, must be on the visiting list. Adults need a photo ID that shows a street address. Anyone under 18 needs an adult, unless they show a marriage license to the person held. Leave phones, bags and everything but keys and ID in the car. Snow or storms can cancel visits with little warning, so call before you drive. See our visitation guide.

• The Barstow jail records every outgoing call; see our phone guide.
• Tablet messaging, where the jail allows it: our messaging guide.
• Letters need the full name and jail address; see our mail guide.
• Funds: our money page and commissary page.

For booking photo requests, call the Sheriff's Office, 410-535-2800. ICE booking photos must be requested through ICE's FOIA office. Federal booking photos are not released to the public or the press, except that the U.S. Marshals Service may publish one while looking for a fugitive.

Southern Maryland federal cases usually go to Greenbelt, clerk 301-344-0660 (Baltimore clerk 410-962-2600). Release is a magistrate's call. Marshals for the District of Maryland, 410-962-2220, who hold federal defendants until trial. Once sentenced, check the BOP inmate locator.

1. Barstow booking prints may trigger an ICE Form I-247A.
2. Requested hold: up to 48 hours after they would otherwise be released (8 CFR 287.7(d)). Paying local bail won't clear it.
3. Agents may drive to Stafford Road then. Otherwise Barstow lets the person go.
4. ICE determines placement. Look on the ICE detainee locator. The ICE Baltimore Field Office is at 31 Hopkins Plaza, 6th Floor, Baltimore, MD 21201, 410-637-4000.

Calvert people serving state time leave Barstow, so search the DPSCS locator; our Maryland prisons directory lists addresses.

Prince Frederick's Department of Juvenile Services office, 200 Duke Street, Suite 2800, 443-550-6275, screens each complaint. Youths kept in custody before a hearing are sent to Cheltenham Youth Detention Center in Prince George's, 301-782-2400.

The jail on Stafford Road is staffed around the clock; call 410-535-4300 or, from the Washington side, 301-855-9640 to confirm visit times and what to bring. The Community Supervision Unit oversees people released before trial. Our visitation guide and mail page have general tips.

Attorney General's hotline, 410-528-8662. Confirm any warrant with 410-535-2800.

Call 410-535-4300 about prescriptions; Barstow jail property pickup goes through 410-535-4300 too.

A Calvert judge must order or approve entry. Staff first interview and process the person, which may take some days in the Barstow jail. They then set the level of supervision, which may include electronic monitoring and treatment. The work release building is in the same parking lot; it is open 7 to 3.

The Barstow jail takes letters only by U.S. mail to P.O. Box 9, Barstow, MD 20610, with the person's full name. Write in pencil or blue or black ink on plain white or lined paper. Put your full name and street address on the front of the envelope; a P.O. box alone or a printed label gets the letter sent back. Up to four photos, no bigger than 4 by 6 inches, on real photo paper, are allowed. Greeting cards are returned. Postcards up to 6 by 9 inches are photocopied and the copy is handed over. The jail takes no book or magazine subscriptions, and stickers, stamps, blank envelopes, clippings and printouts from the internet are refused. Nobody may drop off mail in person.

• Calvert County Sheriff's Office, 30 Church Street, Prince Frederick, MD 20678, 410-535-2800, the main police agency for the county.
• Maryland State Police, Prince Frederick Barrack U, 210 Main Street, Prince Frederick, MD 20678, 410-535-1400.

Calvert's two towns, Chesapeake Beach and North Beach, have no police departments of their own; the Sheriff's Office patrols them. College of Southern Maryland Public Safety, Prince Frederick campus, 443-550-6033. Natural Resources Police, who patrol the bay and state parks, 410-260-8888. Emergencies: 911.