The California laws governing sobriety checkpoints are complex. For that reason, many California drivers do not understand that there are certain guidelines that police must follow.
This post offers a brief summary of the existing rules and regulations as well as a new bill currently under consideration by the California assembly.
The Existing Legal Framework
First and foremost, California DUI checkpoints are governed by the Fourth Amendment of the U.S. Constitution, which protects against “unreasonable” searches and seizures. This means that police generally need reasonable suspicion or “probable cause” to pull over a vehicle. California courts have concluded that sobriety checkpoints are generally not considered unreasonable searches because they are not intended to arrest drivers but rather to promote public safety. This is, of course, so long as certain procedures are followed.
A 1987 California Supreme Court case, Ingersoll v. Palmer, outlines the procedures that California law enforcement must follow.
Before conducting the California DUI checkpoint, guidelines include:
- Choosing a time, duration and location where there is a high level of alcohol-related arrests
- Announcing the DUI checkpoint before it occurs
- Making sure there is proper lighting, warning signs and signals and clearly identifiable vehicles and officers
During an the California DUI checkpoint, guidelines include:
- Sticking to a formula such as stopping every driver or every second, third or fourth driver
- Keeping the length of detention of each motorist minimal
- Making sure the check is not intrusive
The Proposed Legislation
Because the guidelines above are not always followed consistently by law enforcement, a new bill being considered by the California assembly would codify the rules for police when conducting California sobriety checkpoints.
The new law would require police officers to follow and abide by specific guidelines that include: establish a neutral formula for inspecting motorists, use proper lights and warning signs, perform DUI checkpoints during appropriate times, notify the public of the DUI checkpoint 48 hours prior and refrain from impounding vehicles of unlicensed drivers.
Further information California DUI laws can be found at the California DUI Guide and OC DUI Checkpoints websites. Drivers are also encouraged to contact experienced DUI defense attorney Thomas Wallin if they are arrested for suspicion of driving under the influence in California.