You can smile in a mugshot without breaking any law. No U.S. statute makes a facial expression during booking a crime. What you’ll run into is policy: federal guidelines call for a neutral, non-smiling face, and nearly every law enforcement agency follows them. So the officer will tell you to drop the smile and take the photo again until they get a usable image. The smile itself won’t add a charge to your case, but it can cost you time in booking and, later, credibility with a jury.
Why Booking Photos Are Supposed to Be Neutral
The FBI’s Mug Shot Implementation Guide tells agencies to photograph the subject looking straight at the camera with the full face and ears visible and “without any facial expression.”1Federal Bureau of Investigation. Mug Shot Implementation Guide The National Institute of Standards and Technology is more explicit: the expression “should be neutral (non-smiling) with both eyes open normally and mouth closed,” and “a smile with closed jaw is not recommended.”2National Institute of Standards and Technology. Best Practice Recommendation for the Capture of Mugshots
The reason is facial recognition. These systems map the geometry of a face and compare it against databases. Smiling pushes the cheeks up, narrows the eyes, and shifts the distances between the landmarks the software relies on. That can cause a miss or a false match. A neutral face keeps the identification system working.
Booking photos also feed into photo lineups shown to victims and witnesses. Every face in a lineup needs to look comparable. One smiling photo in a row of neutral ones stands out and can undermine the fairness of the identification.
What Happens If You Smile Anyway
If you grin, the officer will ask you to relax your face and take the photo again. This can happen several times. They need a usable image and they will keep going until they get one. Every retake adds to a booking process that already includes fingerprinting, a property inventory, and paperwork.
You may see claims online that refusing to cooperate with the photo can lead to obstruction of justice or resisting arrest charges. That overstates the law. Federal obstruction statutes cover interference with court proceedings and investigations, not booking photo compliance. Resisting arrest generally requires physical resistance to a lawful arrest, not a facial expression. Aggressive, prolonged non-cooperation with the entire booking process could create separate problems in theory, but the specific act of smiling is not a charge trigger. The realistic consequence is wasted time.
Why Defense Attorneys Tell You Not to Smile
Smiling is technically allowed, and defense attorneys still tell clients not to do it. The reason is perception, not legality. If the case goes to trial, the prosecution can put your booking photo in front of the jury. A smile in that photo can read to jurors as someone who wasn’t taking the arrest seriously, or worse, someone pleased with what happened. First impressions from a photograph are hard to unwind, even when they have nothing to do with the facts.
Prosecutors choose which images to display, and a smiling mugshot hands them an easy visual argument. A neutral photo gives the defense nothing to explain. Thirty seconds of composure at booking can prevent a problem that follows the case for months.
Religious Head Coverings at Booking
One related choice at booking is worth flagging because it is often misunderstood. In the 2021 case Clark v. City of New York, a federal court ruled that the NYPD’s former policy of requiring Muslim women to remove their hijabs for booking photos violated the First Amendment. The court found that removing a covering the person normally wears in daily life actually worked against the identification purpose of the photo. The NYPD changed its policy during the lawsuit and now allows arrestees to keep religious head coverings on.
The ruling addressed the hijab, which leaves the entire face visible. It did not address face-covering garments like the niqab. Several other departments in Michigan, California, Minnesota, and Maine allow religious head coverings in booking photos, and both the U.S. Department of State and USCIS permit them in identification photographs.
What to Do When It’s Your Turn in Front of the Camera
Keep a neutral expression, look straight at the camera, and follow the officer’s instructions. Not because smiling is illegal, but because a straight face is the fastest way through booking and the safest choice if the photo ever reaches a jury. If you wear a religious head covering, you have a constitutional basis to ask to keep it on, though practices vary by department.
The booking photo is a small moment inside a stressful one. It is also one of the few points during an arrest where a small choice on your part can shape how the rest of the case unfolds.