ICE Detention in Montana: How to Find and Support a Detained Loved One

If someone you love has been detained by Immigration and Customs Enforcement, known as ICE, in Montana, the most important thing to understand is that Montana has no dedicated immigration detention center. People detained by ICE in Montana are usually held only briefly in a local county jail and then transferred out of the state, often to a facility hundreds of miles away in another part of the region, such as Nevada or Utah. So expect that your person may be moved, and know that finding their current location is the first task. Getting an immigration attorney involved right away is the second.

It helps to understand the nature of this. ICE detention is civil, not criminal. A person is not being held as punishment for a crime; they are being held to secure their presence for immigration proceedings or removal. And unlike criminal court, immigration court does not provide a free, government appointed lawyer, which is why finding legal help early is so important.

One number matters more than anything else through all of this: the Alien Registration Number, called the A-Number. It is a nine digit number assigned to the case, found on immigration paperwork, a work permit, or court notices. Write it down and keep it close, because it follows your person from place to place, even across state lines, and it is the key to locating them, posting any bond, and working with a lawyer.

How to find someone in ICE custody

ICE runs a free public tool called the Online Detainee Locator System, at locator.ice.gov. You can search by the A-Number, which is the most reliable way, or by the person's full name plus their country of birth and date of birth.

A few things make the difference between finding your person and coming up empty. The locator only matches names spelled exactly the way the government entered them, so if you get no result, try different spellings, swap the order of first and last names, and try with and without a middle name. Children under 18 do not appear in the system at all. And there can be a lag of a day or more before a newly detained person shows up.

Because people detained in Montana are often moved out of state quickly, keep checking the locator over the following days, and do not be surprised if your person appears at a facility in Nevada, Utah, or elsewhere. If you cannot find them, call the ICE detention reporting line at 1-888-351-4024. Montana is overseen by the ICE Enforcement and Removal Operations Salt Lake City field office, which covers Utah, Idaho, Montana, and Nevada, and can be reached at SaltLakeCity.Outreach@ice.dhs.gov.

Where ICE detention happens, and does not, in Montana

Montana does not have a dedicated immigration detention center. When ICE detains someone in the state, it typically holds the person for a short time in space it rents from a local county jail, such as the Cascade County jail in Great Falls, while arranging transport. This is usually a staging step rather than a long stay.

From there, people are generally transferred out of the region. The Salt Lake City field office has often relied on a detention center in southern Nevada, near Pahrump, as a central holding facility, and detainees from across the region, including Montana, may be sent there or to facilities in Utah. Because of this, the place where your person is first held in Montana is frequently not where they will remain. Always rely on the live locator to confirm where they actually are at any given moment.

How someone ends up in ICE custody in Montana

Local cooperation with ICE in Montana is limited. Most law enforcement agencies in the state are not part of the 287(g) program, the arrangement that lets local officers carry out certain immigration functions, and without it local officers are generally not authorized to arrest a person solely because of their immigration status. As a result, most people are taken into custody through ICE's own enforcement, including workplace operations and arrests in the community.

That said, contact with local law enforcement can still lead to immigration custody. When a person is booked into a jail, ICE can place a detainer, also called an ICE hold, which is a request to keep the person for up to 48 hours beyond their normal release so ICE can take custody. If your person was first arrested locally, ask the attorney exactly how they came into ICE custody, because the circumstances can matter to the case.

How the process and your person's rights work

Immigration cases are handled in immigration court, run by a separate agency called the Executive Office for Immigration Review, not by ICE. Montana does not have its own immigration court, so cases are generally heard elsewhere in the region, often by video, and especially once a person has been transferred to another state. You can check case status through the court's automated system using the A-Number.

Here is what families most need to know about rights. A detained person has the right to be represented by a lawyer, but at their own expense, because the government does not provide one in immigration proceedings. They have the right to a list of free or low cost legal service providers. They generally have the right to a hearing before an immigration judge, and in many cases the right to ask that judge for release on bond. Some people are eligible for bond, which a judge can set and which can then be paid for release while the case continues; others fall under mandatory detention and are not eligible. One more thing worth knowing: a detained person should not sign documents giving up their rights, such as a voluntary departure form, without talking to a lawyer first.

How families can help from the outside

Find a lawyer early, and keep the likely transfer in mind. Montana has relatively few immigration attorneys, and because your person may be moved to another state, a lawyer who can handle the case in the destination region, or who works with attorneys there, can be valuable. Have the A-Number ready when you call.

Plan around the move. Money, phone, mail, and visitation all depend on the specific facility where your person is held, which may end up being in another state. Wait until you have confirmed the current facility on the locator, then call that facility to learn its rules. A common requirement is that letters include the last four digits of the A-Number along with the sender's name and address.

Track every transfer. Keep checking the locator so you always know where your person is, because in Montana cases the location can change more than once.

Keep the paperwork organized. Hold onto every document with the A-Number, every court notice, and every receipt, and share copies with the attorney.

Staying connected matters more than anything

Through all of the logistics, do not underestimate the simple power of staying in touch. Being detained is frightening enough, and being moved far from home, to a state where your person may know no one, deepens that isolation. Steady contact from home is one of the few things that genuinely helps a person hold on.

Letters and photos are the backbone of that connection. They are something your person can keep, read again on a hard night, and hold as proof that home has not let go, and they can follow your person from one facility to the next. InmateAid can help you send physical mail and photos to your loved one, printed and delivered the right way so it reaches them inside. Use it to send pictures of family, words of encouragement, or simply a reminder that someone is fighting for them on the outside. That steady contact, alongside a good lawyer, is the most practical support you can give while the case moves forward.