The police do not referee the encierro. They do not decide who is a good runner and who is not. What they do is enforce access, sobriety, and preparedness. Every morning during San Fermin, police form a human barrier across the encierro route and methodically sweep up the course, removing anyone who should not be there. This sweep happens before the bulls enter the street. It is not chaotic. It is not violent. It is systematic. And it removes a significant number of runners every single morning because those runners did not do enough research to know where to be.
Understanding police protocol is not about being afraid of authorities. It is about understanding the structure that keeps the encierro functioning as a controlled event rather than a disaster. The police enforce boundaries that exist for safety. Runners who know the rules can work within them. Runners who do not know the rules, or who believe the rules do not apply to them, are the ones who get removed.
Where You Must Be Before Police Start Moving
Dennis is direct about this: “By say 07:15, 07:00, you have to get on the run route and be between town hall and the beginning of the route. So anywhere along Santo Domingo, or in town hall.”
The authorized entry zone for the encierro is the lower third of the course, from the town hall plaza (Plaza del Ayuntamiento) up to the starting corrals at Santo Domingo. Runners must be positioned somewhere within this zone before police begin their sweep. This is roughly a 300-meter stretch. That is the window. That is the zone. Okdiario’s encierro coverage has documented how strictly these boundaries are enforced during San Fermin. For a complete map of the course and its sections, see our guide to the full encierro route.
Ray Mouton, in his account Pamplona (2002), documents the enforcement: “The police will only allow you to enter the route in the portion that comprises the first part or lower end of the course—the area between the town hall plaza and the corrals on Santo Domingo. Police will not allow any entry anywhere after 7:30 a.m.” This rule has not changed in the two decades since publication.
The critical detail many first-time runners miss is what happens if they try to wait on Calle Estafeta or any other section forward of the town hall zone. Dennis explains the mistake: “A lot of people think because they’re gonna run Estafeta, they’ll go to Estafeta Street. They’ll wait there. Eventually, the police are gonna push them off.”
This is the filtering mechanism. Runners who have not researched the encierro show up at their favorite section of the route—the long straight where the action is most visible, the place they have seen in videos—and they camp there. They wait. The police come. They are removed. Hundreds of runners are removed every morning for this single mistake.
The Police Sweep Mechanism
At approximately 7:15 AM, before the 8:00 AM rocket that signals the bulls’ release, police form a line at the boundary between the town hall plaza and Mercaderes. This line then advances slowly up the route toward the bullring. It is a moving barricade of officers pushing ahead, with one direction: get everyone forward of this line off the course. Diario AS has covered the sweep procedure in its live encierro reporting, noting how efficiently the Policia Municipal clears each section.
Dennis describes the mechanics: “The police are forming a line where town hall transitions into Mercaderes. And at some minutes before the run, the police will start to move up the route in the direction the bulls run.” The sweep is deliberate. It is not rushed. It moves at a steady pace. And anyone who is on the route but should not be there gets caught by it.
Ray Mouton documents the staged release that follows this sweep: “Police lines normally hold all runners in the bottom of the course until about four or five minutes before the rocket. Then the runners are allowed to advance to a point just beyond the halfway mark where they encounter a second police line that will hold them a few more minutes. When the runners are released from the second police line, they spread along the entire length of the course.”
This staging system serves a purpose. It prevents overcrowding in any single section. It ensures that when the bulls are released, runners are distributed across the route rather than packed into the first few blocks. And it means that when the encierro begins, the route is actually clear of people who should not be there.
What Police Screen For
While the sweep is happening, police are also conducting inspections. Dennis notes the scope: “The police are additionally combing through the route to determine if anyone’s holding anything that they shouldn’t be holding. They have cameras, if they have a bag, if they have inappropriate shoes, if they’re inebriated.”
This is a comprehensive screening. Police are looking for:
Cameras and Recording Devices: Photography and videography are restricted during the run itself. Runners carrying cameras or phones out are flagged and removed. This is not an arbitrary rule. A runner holding a phone or camera is not focused on the route, not focused on their footing, and not focused on survival.
Bags and Backpacks: Anything a runner is carrying is a potential trip hazard. If an item falls, someone behind you can step on it, lose balance, and fall. This creates a cascade. Police remove runners carrying bags.
Inappropriate Footwear: Runners in sandals, flip-flops, dress shoes, or any shoe without proper traction on stone are a liability. Police remove them.
Intoxication: A runner who is drunk is a safety hazard to themselves and everyone around them. Police remove intoxicated runners. This is not negotiable.
Dennis adds an important detail about enforcement: “Runners that are experienced will help point people out to the police because again, the running of the bulls is very serious, and we don’t want anyone on the run route that’s not completely prepared to be on the run route.” Experienced runners actively assist police by identifying unprepared participants. The screening is community-enforced as much as it is police-enforced.
Alcohol Policy and Sobriety Enforcement
San Fermin is a festival. There is drinking everywhere. But on the encierro route, in the 30 minutes before the run, there is zero tolerance for intoxication.
Police watch for signs of inebriation: slurred speech, instability, inability to stand upright, aggressive behavior. Any runner exhibiting these signs is removed. This is not done to humiliate. It is done because a drunk runner is a danger to everyone.
Mouton documents the historical reason for this enforcement: “In one way or another, this rule is usually enforced. One should know the rule is sometimes enforced promptly and unofficially by local runners—who pummel the violator immediately after the encierro.” While informal enforcement (physical punishment from other runners) is extreme and rare in modern San Fermin, the underlying principle is clear: running drunk is not tolerated, and has never been tolerated.
The practical reality is that alcohol impairs judgment and reaction time. On a course where bulls are moving at 15+ mph and turns are sharp, the difference between sober and intoxicated reaction time can be measured in centimeters. Police remove drunk runners before they can become casualties.
Phones, Cameras, and Recording
Many runners want to document their experience. They bring phones. They want to record. Police actively prevent this. Our detailed analysis of the Telefonica stretch covers the final meters where police and medical teams are most concentrated.
Dennis emphasizes the enforcement: “People need to be very cautious about having their phone out. Police are sometimes looking to make an example of people so others watching will be more cautious.”
This is explicit deterrence. Police will sometimes single out a runner with a phone, remove them conspicuously, and process them in full view of other runners on the route. The message is clear: phones out equals removal. The example is made for the benefit of everyone watching.
The reasoning is practical. A runner holding a phone is looking at the phone, not at the route. They are not watching their footing. They are not aware of the herd’s position. They are a liability. And if they fall because they were recording, the pile-up behind them can injure dozens of other people.
What Happens If You Get Removed
If police decide you should not be on the route, you are removed. This does not mean arrest. It means being escorted off the course to the perimeter, usually with a verbal warning. You are told to leave, and you leave.
Dennis notes the scale of this operation: “There’s a significant number of people that are uninitiated that haven’t done any research about the run that will get kicked off every morning because they’re not in the right place.” Hundreds of runners are removed every day. This is normal. This is expected. The official sanfermines.net resource provides additional detail on the security apparatus that operates alongside the police each morning.
The removal is not violent. It is not confrontational. Police simply ask you to leave. If you do not comply, they physically escort you away from the route. Once you are removed, you cannot re-enter for that morning’s encierro. You have missed it. The only option is to try again the next day, positioned correctly.
Dennis puts this in perspective: “100% of those people that get kicked off didn’t do enough research to know even where to be in the morning. So that helps.” The police sweep, in addition to its safety function, acts as a natural filter. The people removed are the ones who did not prepare. The people who remain are the ones who did the work to understand the route and the rules.
Expert Insight: Dennis Clancey on Police Protocols
“By 7:00 to 7:15, you must be positioned between town hall and the beginning of the route on Santo Domingo. The police form a line at the town hall-Mercaderes transition and sweep up the route, pushing anyone forward of that line off the course. Police screen for cameras, bags, inappropriate shoes, and intoxication. A significant number of runners are removed every morning simply because they weren’t in the right place. Those removed didn’t do enough research. The police also look for phones out, and they sometimes make examples of people to deter others from recording. Experienced runners help police identify unprepared people. If you know where to be and you’re sober and prepared, you won’t be removed.”
— Dennis Clancey, founder of Encierro and member of La Unica Pena
Dennis’s experience running since 2007 gives him perspective on how consistently these protocols are enforced. The rules are not arbitrary. They exist because deaths and injuries resulted from overcrowding, intoxication, and unpreparededness. The police are not adversaries. They are part of the infrastructure that keeps the encierro functioning safely.
Spanish Vocabulary
Policia (poh-lee-SEE-ah): Police. The police officers managing the encierro route are Local Police (Policia Local) of the city of Pamplona, not the National Guard or regional authorities.
Desalojo (deh-sah-LOH-hoh): Removal or eviction. The process of being removed from the route by police.
Mozo (MOH-zoh): A young man or runner. A participant in the encierro. The term is used affectionately by runners themselves and by experienced observers.
Casco viejo (KAS-koh vee-AY-hoh): The old quarter of the city where the entire encierro route is located. This is where police enforcement is most concentrated.
Frequently Asked Questions
What time do I need to be on the route?
By 7:00 to 7:15 AM, you must be positioned somewhere between the town hall plaza and the starting corrals at Santo Domingo. This is the only authorized entry zone. Police will not allow entry anywhere after 7:30 AM.
Can I wait on Calle Estafeta?
No. Estafeta is forward of the authorized entry zone. If you wait there, police will remove you before the encierro begins. Hundreds of runners make this mistake every morning.
Can I bring a camera or phone?
Not for recording. If police see you with a phone out or a camera, you will be removed. Photography is restricted during the encierro for safety reasons. You cannot focus on the route while documenting.
Will I be arrested if police remove me?
No. Removal means being escorted off the route with a warning. You will not be arrested unless you resist or become aggressive. You will simply miss that morning’s encierro.
Can I run if I have had drinks the night before?
If you are sober in the morning and pass the sobriety screening, yes. If you are still intoxicated, police will remove you. Being visibly drunk is grounds for immediate removal.
What shoes are not allowed?
Any shoe without proper traction on wet cobblestone. Sandals, flip-flops, dress shoes, and smooth-soled shoes will result in removal. You need footwear with aggressive soles designed for stone.
Do I have to have a specific outfit?
No specific outfit is required, but police will note if you are dressed in a way that suggests inexperience. Wearing casual clothes, athletic wear, or regular shoes, combined with other factors, may raise flags. Wearing the traditional white outfit (camiseta blanca and pantalon blanco) with the red panuelo de San Fermin signals that you know what you are doing.
Police enforcement of encierro protocol is not punishment. It is the mechanism that keeps the event safe. Runners who prepare properly, know where to be, and follow the rules will pass through the police screening without issue. To understand the complete encierro route and how each section functions, read our guide. For historical context on how encierro security evolved, read about the safety improvements made in response to past incidents.