You see the warning signs first. Then you spot the traffic cones. Police lights flash in the distance. Once you drive into the lanes set up for an Albuquerque Police Department DWI checkpoint, you have nowhere else to go. You just have to wait your turn.
But when does the legal stop actually happen? Is it when the officer taps on your window to ask for your license? Or does it happen the second you pass that first orange cone?
That exact question decided a recent New Mexico Court of Appeals case. The timeline of a traffic stop dictates what the police can and can't do. A few seconds can mean the difference between a valid arrest and a complete dismissal of the charges.
In the early hours of March 20, 2021, Albuquerque police set up a sobriety roadblock on Unser Boulevard. Signs warned approaching drivers about the checkpoint and told them to reduce speed. Cones directed traffic into two lanes leading to stop signs.
Sergio Varela-Coronado drove into this setup at around 1:00 a.m. According to the arresting officer, Varela-Coronado drove very fast and hit at least one traffic cone before finally stopping at the sign. The officer walked up, noticed bloodshot eyes, and smelled alcohol. Police arrested him for driving under the influence of intoxicating liquor under NMSA 1978, Section 66-8-102. They also charged him with having an open container in a motor vehicle under Section 66-8-138.
The Fourth Amendment protects you from unreasonable seizures. Usually, police need a specific reason to pull your car over. They need to see you swerving, speeding, or running a red light. The law calls this individualized reasonable suspicion.
Roadblocks operate differently; police stop everyone. They force you to stop without knowing anything about you or your driving. Courts allow this exception to the normal rules, but only if the roadblock meets strict requirements.
In New Mexico, a case called City of Las Cruces v. Betancourt outlines those requirements. The state must prove the checkpoint was reasonable. Supervisors must plan the roadblock. Officers can't just decide to set one up on a whim. The location must make sense. The public needs advance warning.
If the police follow all these rules, the roadblock is legal. If they skip steps, the roadblock violates the Constitution. When a roadblock is unconstitutional, a judge will suppress any evidence the police gather from it.
Proving a roadblock follows the Betancourt rules takes effort. Prosecutors have to bring in supervisors to testify about the planning process. They have to submit evidence about the location and the safety protocols.
In Varela-Coronado's case, the State didn't want to do that. They only called the arresting officer to the stand.
The prosecutor tried a shortcut. They argued they didn't need to prove the roadblock was legal because Varela-Coronado hit a traffic cone.
The State claimed the legal seizure didn't happen until the officer actually approached the stopped car. Since Varela-Coronado hit the cone before that final physical stop, the State argued the officer had independent reasonable suspicion. Under their theory, the strict roadblock rules didn't matter anymore. The bad driving alone justified the investigation.
The defense pushed back hard. They argued the seizure happened much earlier. The moment Varela-Coronado entered the cone perimeter, the police restricted his freedom. He was seized right then. And since he hit the cone after he was already seized, the State still had to prove the roadblock itself was legal to justify trapping him in the first place.
The New Mexico Court of Appeals sided with the driver.
The court looked at how the Fourth Amendment defines a seizure. A person is seized when two things happen. First, a reasonable person would not feel free to leave the situation. Second, the person submits to the police show of authority.
Think about driving into a checkpoint zone. The officers block your forward movement. Signs order you to slow down. Cones force you into specific lanes leading directly to police officers. Nobody in that situation feels free to just drive away. The court noted that blocking a vehicle is a form of physical restraint. A reasonable driver would definitely feel their movement was restricted.
Then the court looked at submission. You don't have to put your hands in the air to submit to police authority. The law recognizes passive acquiescence. By simply driving into the roadblock and staying in the lane instead of trying to evade it, Varela-Coronado submitted to the officers.
The timeline ruined the State's case.
And since Varela-Coronado submitted to the roadblock, he was seized the second he entered the perimeter. The police needed reasonable suspicion right then. They didn't have it. The cone hitting happened later. The police can't use something that happens after a seizure to justify the seizure itself.
Since the seizure started at the entrance, the State had to prove the roadblock followed all the Betancourt rules to make the stop legal. The roadblock acts as a substitute for reasonable suspicion. But that substitute only works if the state actually proves the roadblock was set up correctly.
Since the prosecutors decided to skip calling the necessary witnesses, they had zero evidence proving the checkpoint was legal. The metropolitan court threw out all the evidence. The Court of Appeals affirmed that decision.
The Court of Appeals contrasted this situation with an older Supreme Court case called State v. Anaya. In that case, a driver saw a sobriety roadblock in the distance. Before reaching the cones or the signs, the driver whipped a legal U-turn to get away. The police chased him down and made an arrest.
In that situation, the driver never submitted to the roadblock. He ran from it. The U-turn gave the police individualized reasonable suspicion to pull him over. The state never had to prove the roadblock was legal because the roadblock never actually seized the driver.
Varela-Coronado did the exact opposite. He drove into the zone. He passively surrendered to the traffic pattern. The seizure started immediately.
Prosecutors frequently try to find ways around strict constitutional requirements. Calling multiple witnesses to establish the legality of a checkpoint takes time and resources. Relying on a single arresting officer is much easier. The Court of Appeals refused to let the State take the easy way out here.
They reaffirmed a basic principle of New Mexico law. If the state wants to force every driver on a public road into a funnel without any suspicion of criminal activity, they carry a heavy burden to prove the roadblock properly balances public safety against severe interference with individual liberty. They have to show their work.
The facts of a specific traffic stop dictate everything that follows in court. What time the lights went on. Where the signs were placed. Whether you hit a cone before or after you entered a restricted zone.
These tiny details dictate whether the police violated your constitutional rights. In this case, the difference of a few dozen feet and a few seconds meant the difference between a major criminal conviction and a complete dismissal of the charges. The State overplayed their hand. They thought a hit traffic cone would save them from doing the hard work of proving their checkpoint was legal.
They guessed wrong.
Patrick J. Martinez
Attorney at Law
25+ years of trial experience in Albuquerque, NM
