In most courthouses, you can bring a backpack inside, but it has to go through an X-ray machine, and some courthouses ban bags of that size entirely. Whether your backpack makes it through the door depends on the specific court’s policy, the bag’s dimensions, and what you’ve packed. If you have a choice, leave the backpack at home or in the car and carry only what you need in something small.
When Backpacks Are Allowed and When They Aren’t
There is no single national rule. Federal, state, and local courts each set their own policies, and those policies range from permissive to strict. Many courthouses treat a backpack the same as a purse or briefcase: it goes on the X-ray belt, and if nothing prohibited is inside, you walk in with it. The U.S. Marshals Service, which handles security at federal courthouses, describes screening purses and briefcases without listing backpacks as categorically banned.1U.S. Marshals Service. What To Expect When Visiting a Courthouse
Other courthouses draw a harder line. The U.S. Supreme Court prohibits any bag larger than 18 inches wide, 14 inches high, and 8.5 inches deep, which rules out most standard backpacks.2Supreme Court of the United States. Prohibited Items Some state and local courts have gone further and ban all bags, purses, and containers from courtrooms. You won’t always learn about these no-bag rules until you’re standing at the checkpoint.
Even where a courthouse building allows backpacks, individual courtrooms inside can impose stricter rules. A judge can bar bags from their courtroom regardless of the building’s general policy. If you’re heading to a hearing, trial, or jury selection, the courtroom-level rule is the one that will affect you.
Because policies vary so much between courts in the same city, the only reliable move is to check the specific court’s website before you go. A few minutes the night before will tell you whether your bag gets in.
What You Cannot Have in the Bag
Whether or not your backpack is allowed, its contents matter more. Certain items are banned across virtually every courthouse:
- Firearms, ammunition, replica guns, stun guns, and knives of any size, including small pocket knives.2Supreme Court of the United States. Prohibited Items
- Scissors, box cutters, and other pointed tools. Pens and pencils are usually fine.3United States Court of Appeals. Screening Information
- Mace, pepper spray, tear gas, and aerosol containers.4United States District Court Western District of Washington. Prohibited Items Policy and List for Federal Courthouses in the Western District of Washington
- Fireworks, lighter fluid, and other explosive or flammable materials.
- Batons, brass knuckles, and similar self-defense devices.3United States Court of Appeals. Screening Information
Bringing a weapon into a federal courthouse is a federal crime, not just a policy violation. Under 18 U.S.C. ยง 930, knowingly possessing a firearm or dangerous weapon in a federal court facility carries up to two years in prison and a fine. If the weapon was intended for use in a crime, the penalty jumps to up to five years.5Office of the Law Revision Counsel. 18 USC 930 – Possession of Firearms and Dangerous Weapons in Federal Facilities State courthouses have their own statutes covering the same conduct. People do forget about a pocket knife or pepper spray sitting in their bag, and forgetting does not prevent you from being turned away or, in serious cases, detained.
Phones, Laptops, and Other Electronics
Cell phone rules trip up more visitors than anything else. Federal courts take a range of approaches. Some allow phones in the building but require them silenced or off in the courtroom. Others limit phone possession to attorneys and court staff. A few keep phones out of the building entirely.6United States Courts. Portable Communication Devices in Courthouses
The Supreme Court is the strictest: all electronic devices, including cell phones, laptops, tablets, cameras, and smart watches, are banned from the courtroom while the Court is in session.2Supreme Court of the United States. Prohibited Items Recording or photographing proceedings is prohibited across federal courts as a matter of Judicial Conference policy.6United States Courts. Portable Communication Devices in Courthouses
The practical problem: if you arrive with a phone and it isn’t allowed, most courthouses do not offer lockers or storage. You’d have to leave the building, stash the phone in your car, and come back through security. If you’re reporting for jury duty or a hearing, that detour can make you late.
Medical and Childcare Exceptions
Courthouses generally accommodate items tied to medical needs or disability. Medication, medical devices, and supplies like insulin and syringes are screened but should be allowed through. The Supreme Court’s policy explicitly authorizes officers to grant exceptions for items “determined to be necessary and required for medical or other special needs.”2Supreme Court of the United States. Prohibited Items Most other courthouses take a similar approach, though the specifics depend on the facility.
Diaper bags sit in a gray area. No federal policy guarantees entry, but security officers usually exercise discretion for parents with young children. Keep the bag small and organized, and expect a closer inspection than a purse would get. At a courthouse with a no-bag policy, you may need to move essentials into a clear plastic bag or small clutch.
What Happens If You Show Up With Something Prohibited
For everyday items that happen to be on the list, like a pocket knife, scissors, or pepper spray, security will deny you entry until you remove the item from the premises.4United States District Court Western District of Washington. Prohibited Items Policy and List for Federal Courthouses in the Western District of Washington That usually means a walk back to your car. Security will not hold the item or store it for you.
For items that are illegal to possess anywhere, such as an unregistered firearm or controlled substances, the situation escalates. Officers can detain you, and you may be cited or arrested depending on the severity.4United States District Court Western District of Washington. Prohibited Items Policy and List for Federal Courthouses in the Western District of Washington Anything law enforcement confiscates will not be returned. A routine court visit can turn into a criminal charge of your own in minutes.
How to Prepare So You Get In
Travel light. Bring your ID, the court documents you need, a pen, and your phone if the courthouse allows it. Leave the rest behind. If you normally carry a backpack, move the essentials into a small bag or folder for the day.
Arrive 15 to 30 minutes before your scheduled appearance. Security lines back up on mornings with heavy dockets, like traffic court or jury selection, and you don’t want to be sorting out a bag problem five minutes before your case is called.
Check the specific court’s website for its prohibited items list and bag policy before you go. Policies differ between federal and state courts and between individual courthouses in the same city. A quick search the night before is the difference between walking in and being turned away.