You probably don’t ever expect to be stopped and searched by the police while you’re out walking or driving. And there’s probably less of a chance that you’d expect the police to show up at your door. But it happens to people all the time, and it can happen to you.

Whether you get searched during a traffic stop, while you’re walking your dog, or in your home, knowing your rights will give you the confidence to navigate the situation safely. You are protected from unreasonable searches and seizures under the Fourth Amendment to the U.S. Constitution, but this protection only applies when you understand your rights and assert them.

In this article, we’ll dive into what your rights look like in practice and what steps you can take if a police officer crosses their legal boundaries.

Know the basics of the Fourth Amendment

The Fourth Amendment protects you against unreasonable searches and seizures by law enforcement. Knowing what counts as “reasonable” is important because police officers only need probable cause or a valid warrant to perform a search.

Probable cause is different from suspicion. Suspicion isn’t enough to justify a search. However, reasonable articulable suspicion is enough to justify stopping you or detaining you for questioning. But it doesn’t give police the right to search you.

Probable cause requires evidence that a criminal offense has either been committed or is being committed. Specifically related to searches, according to Cornell Law School, “probable cause exists when there’s a fair probability that a search will uncover evidence of a crime.”

In most cases, police need a warrant to enter your home to conduct a search. There are exceptions, but they’re specific and limited. If an officer shows up at your door requesting or demanding access to your home, ask for a warrant. If they don’t have one, you can legally refuse entry.

However, be aware that you can’t physically prevent a search from taking place even if it’s illegal. Interfering can lead to separate charges, even if that search is found to be unlawful. It’s not fair, but that’s how the law works. If your rights are being violated, assert your rights, but don’t fight it. Call a lawyer and have them sort it out for you.

If you experience a search that feels unlawful and want to know if your rights have been violated, contact a civil rights attorney right away. They’ll ask you all the right questions to determine if your civil rights have been violated. If you have a strong case, it’s worth pursuing a lawsuit.

You can refuse to consent to a search

Many people don’t realize they have the right to say no to a search. Police often ask for permission in a conversational tone, like, “Mind if I take a look?” They hope you’ll comply without thinking. Don’t fall for it. Even if you have nothing to hide, don’t comply. Refusing a search is not a crime, and you can’t be arrested for saying no.

What police can search without consent

Let’s say you refuse to consent to a search. Police can still conduct a search in some situations. For example, if you’ve been arrested, police can search your person and the immediate area around you for weapons or evidence.

If an officer pulls you over for a traffic violation and smells drugs or sees contraband, they can search your vehicle without a warrant. Thanks to the plain view doctrine, if an object is visible from where an officer is legally allowed to stand, they can seize it without a warrant. And if police believe evidence is going to be destroyed or someone is in danger, they can conduct a search without a warrant (even if it requires entering your home).

How police handle shared living spaces

While a warrant is generally required for searching a home, if a roommate lets officers into shared spaces, the search is typically legal even without permission from every resident. However, roommates can’t consent to allowing a search of your private spaces. And if you live in a dorm, campus staff can’t consent to a police search on your behalf.

Know your rights and be ready to call a lawyer

Police searches can be intimidating when you don’t know your rights. The more you understand your legal protections, the more confidently you can navigate any encounters you may have.

Whether you’re faced with a search during a traffic stop, a walk around the block, or an officer at your front door, knowing your rights and seeking legal support will be your greatest forms of protection.