Contest Speeding Ticket California
Want to contest your California speeding ticket? Good choice. Here's your complete guide to challenging your citation and potentially getting it dismissed.
Contesting Quick Facts
Your Two Options for Contesting
Option 1: Trial by Written Declaration (Recommended)
This is the preferred method for most people:
- No court appearance: Submit your defense in writing
- Officer must respond: Many don't, and that leaves the judge deciding without their evidence
- Second chance: If you lose, request Trial de Novo
- No additional risk: Worst case, you pay the original fine
Option 2: In-Person Trial
Appear in court and present your defense to a judge:
- Face the officer: Cross-examine and challenge testimony
- Immediate decision: Judge rules at the hearing
- One shot: No do-over if you lose (unless appealing to Superior Court)
- Time off work: Must appear during court hours
Step-by-Step: Contest via Written Declaration
Step 1: Request a Trial by Written Declaration
You can typically do this online through your court's website or by mail. You'll need to:
- Complete form TR-205 (Request for Trial by Written Declaration)
- Pay bail (full ticket amount)
- Submit by your deadline
Step 2: Write Your Declaration
Your written defense goes on form TR-205. Include:
- Your version of events
- Legal defenses (speed survey, calibration, etc.)
- Challenges to the evidence
- Any supporting documentation
Step 3: Submit and Wait
The court will set a deadline for the officer to respond. If the officer doesn't submit their declaration, you win automatically. If they do, the judge reviews both and issues a decision.
Step 4: Receive Verdict
You'll receive the judge's decision by mail:
- If dismissed: Bail is refunded, no points, case closed
- If guilty: Bail becomes your fine, points assessed
Step 5: Request Trial de Novo (If Guilty)
If you lose, you have 20 days to request a Trial de Novo, a brand new in-person trial where your written declaration is thrown out and you start fresh.
Let TicketFight AI Write Your Declaration
Your written declaration decides the case. TicketFight AI generates a professional, legally-sound defense targeting the specific weaknesses in your case.
- Custom defense arguments
- Proper legal formatting
- 100% money-back guarantee if not dismissed
Grounds for Contesting
Speed Detection Challenges
- Calibration issues: Radar/LIDAR must be properly calibrated
- Officer certification: Must be trained and certified
- Equipment malfunction: Environmental interference
- Targeting errors: Wrong vehicle identified
Speed Survey Defense
California requires current speed surveys for radar enforcement on roads with prima facie speed limits. Since AB 382 took effect on 1 January 2026 an engineering and traffic survey is valid for 5 years, 7 where the conditions in CVC 40802(c) are met, and up to 14 where a registered engineer finds no significant change in roadway or traffic conditions; the rule does not reach every road, and excluding the measurement is not a dismissal. years old), radar evidence may be inadmissible.
Citation Errors
- Wrong violation code
- Incorrect location
- Incorrect vehicle description
- Missing required information
Signage Issues
Speed limit signs must be clearly visible and properly posted. If the sign was obscured or missing, you may have a defense.
Why Trial by Written Declaration Works
- Officer no-shows: Officers must take time to write and submit testimony, and many simply don't respond
- Written = documented: Officers can't embellish or change their story when it's in writing
- Equal footing: No intimidation of facing officer in court
- Time to craft defense: You can research and write a thorough argument
Common questions
Frequently asked questions
Can I contest if I was actually speeding?
Yes. The prosecution must prove the case beyond reasonable doubt. You can challenge the evidence, measurement method, or procedures without admitting or denying anything. Many tickets are dismissed on procedural grounds.
Do I need a lawyer to contest?
For most infractions, no. Trial by Written Declaration doesn't require legal representation. Services like TicketFight AI provide professional defense documents at a fraction of attorney costs.
What's the success rate?
No published figure exists for how often contested tickets are dismissed or reduced. Dismissals do happen when an officer files no written declaration by the clerk's return date, because the judge then decides on a thinner file.
Can I contest a ticket from another state?
Yes. If you received a California ticket but live out of state, Trial by Written Declaration is your best option, since you don't need to travel to California to contest.
How do I contest a speeding ticket in California?
You have two main options: Trial by Written Declaration (submit your defense in writing, no court appearance) or In-Person Trial (appear in traffic court). Most people prefer written declaration because it's convenient and gives you a second chance if you lose.
What are the grounds for contesting a speeding ticket?
Common grounds include: challenging the speed detection method (radar/LIDAR calibration, officer certification), expired speed survey, signage issues, mistaken identity (wrong vehicle), and procedural errors on the citation.
What happens if I contest and lose?
If you lose with Trial by Written Declaration, you pay the original bail (already posted) and can request a Trial de Novo (new in-person trial) for another chance. If you lose an in-person trial, you pay the fine and receive points on your record.
How long do I have to contest a speeding ticket in California?
Your deadline is printed on your citation—typically around 30 days. If you want to contest, you must respond by this date either by paying bail and requesting Trial by Written Declaration, or by appearing in court on your arraignment date.