Tag: probable cause

Can Local Police Stop Cars on the Freeway?

Yes. Local police can stop cars on the freeway or highway. In fact, any member of California law enforcement can generally enforce the laws anywhere in the state. This includes sheriffs, park rangers, harbor patrol, railroad police, and many other branches of law enforcement.

Why Can Police Stop Cars on the Freeway?

In California, almost all state and local law enforcement agencies have authority throughout the entire state. This means they can stop a vehicle on the freeway and can arrest persons for whom they have probable cause. For an exhaustive list, see Penal Code § 830-832.18.

Some of the better known state agencies are:1

  • California Highway Patrol
  • University of California Police
  • Cal State University Police
  • Department of Corrections and Rehabilitation
  • Department of Fish and Game
  • Department of Parks and Recreation
  • Department of Forestry and Fire Protection
  • Department of Alcoholic Beverage Control
  • California Exposition and State Fair Marshalls
  • Department of Cannabis Control

There are, however, many many more state agencies that have police authority throughout the state:

  • Department of Consumer Affairs2
  • Department of Motor Vehicles3
  • California Horse Racing Board4
  • Department of Housing and Community Development5
  • Department of Financial Protection and Innovation6
  • Department of Justice7

There are also many local agencies that have police powers anywhere in the state of California:

  • All county sheriffs and city police officers8
  • Community College Police9
  • Housing Authority Patrol Officers10
  • Municipal Security Officers11

Local agencies have some limits on their policing. Fore example, local police can only police:

  • Public offenses in their jurisdiction;
  • With permission from other law enforcement;
  • To prevent danger to person or property or escape of the perpetrator.

Three agencies from other states have limited police power to stop cars a freeway. They are the Oregon State Police, the Nevada Department of Motor Vehicles and Public Safety, and the Arizona Department of Public Safety. These agencies have police powers up to 50 miles inside California if:

  • The California Highway Patrol requests their help, or
  • Law enforcement services are necessary to preserve life 12
  1. Penal Code § 830.2 ↩︎
  2. Penal Code § 830.3(a) ↩︎
  3. Penal Code § 830.3(c) ↩︎
  4. Penal Code § 830.3(d) ↩︎
  5. Penal Code § 830.3(j) ↩︎
  6. Penal Code § 830.3(l) ↩︎
  7. Penal Code § 830.1(b) ↩︎
  8. Penal Code § 830.1 ↩︎
  9. Penal Code § 830.32 ↩︎
  10. Penal Code § 830.31 ↩︎
  11. Penal Code § 830.34 ↩︎
  12. Penal Code § 830.39↩︎

Probable Cause

Probable cause is an exception to the warrant requirement under the 4th Amendment. In other words, police do not need a warrant to arrest a person as long as they have probable cause.

Definition

Probable cause means that the facts known to the officer warrant a reasonable belief that a crime has occurred or that evidence of a crime is located in a specific place. Probable cause is based on the totality of the circumstances and does not need to rely on any one fact. It does not have to be certain and can be based on probabilities and common sense conclusions. (United States v. Martin (2010) 613 F.3d 1295.)

Probable cause requires more than mere suspicion but does not necessitate facts sufficient to establish guilt. (United States v. Munoz-Nava (2008) 524 F.3d 1137.)

What Can Police Do if They Have Probable Cause?

Police arrest a person if they reasonably believe that person committed a crime. Police can search an area if they have reason to believe there is evidence of a crime in that area.

Specific Examples

An officer may arrest a person when multiple witnesses identify the suspect as the shooter in a homicide. (Moorer v. City of Chicago (2024) 94 F.4th 715.)

An officer may arrest a felon for unlawfully possessing a firearm after they observe a firearm in their car. (Young v. City of Chicago (2020) 987 F.3d 641.)

An officer may arrest a person when they observe facts consistent with drug transportation based on their previous experience with drug transportation. (United States v. Munoz-Nava (2008) 524 F.3d 1137.)

Insufficient Probable Cause

An officer cannot arrest a person based on their presence at a suspected stash house and traveling in an indirect route to their location. (United States v. Cervantes (2012) 678 F.3d 798.)

An officer cannot arrest a person for being near a crime without indications that the person is involved in the crime. (Williams v. City of Chicago (2013) 733 F.3d 749.)

An officer cannot arrest a person for possessing marijuana unless there is some indication the marijuana is being possessed or sold unlawfully. (People v. Lee (2019) 40 Cal.App.5th 853.) If you believe officers arrested you without probable cause, you should consult an attorney. You could contest your arrest in court and ask the judge to suppress evidence obtained unlawfully by police. You can also file a complaint or sue the police for their unlawful arrest.

Marijuana DUI

What is a marijuana DUI?

A “marijuana DUI” is driving under the influence of marijuana. It is illegal under Vehicle Code § 23152(f).

A person is “under the influence” of marijuana if they are unable to drive with the caution of a sober person.

Recreational Marijuana

Recreational marijuana is legal in California for people over the age of 21. However, it is illegal to drive under the influence of marijuana. Drivers who fail sobriety tests and are in possession of marijuana are often arrested for DUI.

Marijuana DUI Investigation

The reason for a DUI stop is usually poor driving, or a crashed or stopped vehicle. Officers start by making contact with the driver of the vehicle and asking them to roll down their windows. Once the windows are down, officers look for signs of marijuana use.

The smell of fresh (unburned) marijuana by itself is not reason for investigation. However, law enforcement can investigate if they observe:

  • Indications of marijuana use;
  • An open marijuana container;
  • Evidence of other illegal activity.

Typically officers will note the smell of marijuana smoke and red eyes. If officers observe these indicators, they will initiate a DUI investigation by asking you to step out of your vehicle. Officers usually ask DUI suspects to perform field sobriety tests during the DUI investigation.

TIP: You may refuse any law enforcement request…refusing an order can result in further consequences.

Marijuana DUI Arrest

If law enforcement has “probable cause” to believe a driver is under the influence of marijuana, they can arrest the driver. Common facts and circumstances used by law enforcement to support probable cause include:

  • Smoke or paraphernalia in car.
  • Smell marijuana smoke on hands or breath.
  • Strong smell of marijuana in vehicle.
  • Appearance and actions of driver.
  • Failed field sobriety test(s) (ok to refuse).
  • Suspect confesses to illegal conduct.
  • Pay/owe sheets, scales, large quantities of money.
  • Driver is sole occupant and/or car full of luggage.

Once the officer arrests a suspect, they will ask that person to submit to a blood test. Refusing to provide a blood sample can result in a suspended driver’s license.

Criminal Charges

The arresting officer will send a copy of their report to the local prosecutor. The prosecutor decides whether to file the charge or charges recommended by law enforcement. Law enforcement also provides the driver with a notice to appear in court.

Fighting the Charge

At the date listed on the notice to appear, the court proceedings begin. The defendant or their attorney needs to appear in court on that date. Failure to appear can result in a bench warrant. A bench warrant is an order for law enforcement to arrest the defendant.

The following are four ways to fight a marijuana DUI:

  • You may fight your case by contesting the reason for a law enforcement stop, detention, arrest, and search.
  • For misdemeanor DUI charges, you may ask the court to divert your case by filing a motion.
  • The prosecutor may be willing to resolve your case for a wet and reckless.
  • You may go to trial and have a judge or jury determine your guilt.

Punishments for Marijuana DUI

The sentence for marijuana DUI conviction is a suspended driver’s license, fines, 3-5 years of probation, a conviction on your criminal record, and at least 3 months of DUI classes.