Grown-ups booked in this county go to the Boulder County Jail. It's at 3200 Airport Road, Boulder, CO 80301. Call 303-441-4650 to reach the jail.

Begin with Boulder County Inmate Search. Not listed yet? Recent arrests at the Boulder jail can lag a bit. Sign up with VINELink for custody notices.

There was no warrant search posted by the county when we checked. For a warrant check, phone 303-441-3600.

The court docket page lists future hearings by county. Planning to surrender? Talk with an attorney before you go.

• Who sets it: a judge picks the amount and type.
• Fast review: for most arrests, the court decides bond within two days after someone lands in custody.
• PR bond: in some cases the court allows release on only a signed promise to return.
• Paying cash: every dollar of the bond is posted at the jail or court.
• Agent fees: Boulder bond agents can charge at most 15 percent of the bond; the minimum fee is $50.
• Property bonds: the court requires equity worth 1.5 times the bond in Colorado real estate.
• Release rules: a judge can require supervision or no contact with a victim, or other conditions.
• Paid but still inside? Another case may block the release.
• Not showing up: a Boulder judge can order an arrest; the bond is kept.
• Ask first: call 303-441-4650 and ask for the current bond and payment options.

See our bail page for more detail.

The court first meets the arrested person at an advisement hearing — video is common. State cases start at the Boulder County Combined Court, 1777 6th Street, Boulder, CO 80302. Call the court at 303-441-3750 with case questions.

Usually, yes, if a judge finds they cannot pay for a lawyer. Contact the defender's office by phone at 303-444-2322.

Visits are booked in advance. Phone 303-441-4650 before your trip; rules shift. Guides: visits and remote visits.

Only that person can place calls. Prepaid accounts cover phone time and messaging. See: phone accounts, messaging, tablets.

Commissary sells food, soap and paper. Pick whatever method the Boulder jail takes. Steps: deposits and commissary.

Address each envelope using the person's real name plus any booking number you know, followed by the jail address. Skip stickers, glitter and tape. Read our mail guide for current rules.

Juvenile court usually handles cases involving teens. Detained youth often head to the Prairie Vista Youth Services Center, 303-659-4450. Questions about a minor? Dial 303-441-3600 and ask for the youth's location.

A health emergency? Call 303-441-4650, ask to reach medical. The pharmacy name can help medical staff check.

A federal arrest that starts in Boulder County does not go through the local court system. The hearings take place inside the Alfred A. Arraj U.S. Courthouse in Denver, 901 19th Street, Denver, CO 80294; the court clerk answers at 303-844-3433. Shortly after being arrested, your relative faces a U.S. magistrate judge for a first hearing.

There is no fixed bail table. So the judge holds a custody hearing to choose whether your relative walks out until trial and under which conditions. Before trial, many federal defendants sit in a jail close by under a deal with the Marshals Service. For their location, contact the U.S. Marshals on 303-728-7800. Once prison time comes down, the federal Bureau of Prisons (BOP) takes charge, and the BOP inmate locator gives you the place.

First: At booking, prints are checked in federal databases that ICE can see.

Next: If ICE wants the detained person, the agency files a detainer with Form I-247A with jail staff.

Then: The form asks to keep the arrested person up to 48 additional hours beyond the scheduled release. Those hours run without a break, including holidays and weekends.

But: Colorado's statute, C.R.S. 24-76.6-102, states plainly that a jail can't keep a person longer solely on ICE's request. So Boulder County sets the defendant free on time unless some other legal hold applies.

Finally: Officers from ICE can come when your family member is let out to take custody. When they do not show up, your relative goes free.

To check ICE custody, use the online locator — search by registration number or name and date of birth and the birth country.

The Aurora contract detention center lists 3130 North Oakland Street, Aurora, CO 80010 and 303-361-6612 as its contact line.

Contact ICE's Denver field office, 12445 East Caley Avenue, Centennial, CO 80111, at 720-873-2899.

After a DOC sentence, they stay in the Boulder jail until the state moves them. At reception, the state checks new arrivals for risk level, medical needs and mental health before classifying them.

Then, they move to a prison that fits their level. Use the state inmate search; for prison details, open our Colorado state prison page.

Check the Boulder County inmate search for the person; Boulder may not post mugshots there. Journalists asking for a mugshot that isn't online might get in touch with the Boulder County sheriff's office on 303-441-3600.

Any ICE mugshot must be requested on ICE's records request page, following which ICE reviews it and may approve it.

Mugshots taken in federal cases stay private from the public and the news media. The single exception: the U.S. Marshals Service, which handles booking photos in federal cases, can share a photo of someone on the run if it helps track them down or alert individuals, or in case of an immediate threat to public safety.

• Holding jail: Boulder County Jail, 3200 Airport Road, Boulder, CO 80301, 303-441-4650
• Release alerts: VINELink (free)
• Court: Boulder County Combined Court, 1777 6th Street, Boulder, CO 80302, 303-441-3750
• Public defender: 303-444-2322
• Bond timing: usually within 48 hours of arrival
• ICE locator: online detainee locator
• Federal court: Arraj courthouse, Denver, 303-844-3433

• Boulder Police: 303-441-3333
• Longmont Police: 303-651-8501
• Lafayette Police (county dispatch): 303-441-4444
• Boulder County Sheriff's Office: 303-441-3600
• Boulder County Sheriff non-emergency dispatch: 303-441-4444

When no town police force covers you, deputies respond. Dial 911 for any emergency.