09/18/2026
**“He was right behind me at the light. Lights on the second we moved. No way I was speeding.”**
**“He was sitting on the motorcycle with both hands on the bars. How did he get radar?”**
**“He says radar, but I was behind him.”**
I hear versions of these every week. They all come from the same place: most drivers have never been shown how officers actually run radar and lidar.
Here is the short version.
**1. You already went by them**
The most common version of the “he was right behind me at the light” story is not that they clocked you from a dead stop. It is that you already passed the officer — parked, rolling, or in the next lane — while you were up to speed, and you did not clock them. They pull out, get behind you, and sit through the light. They wait to hit the lights until the intersection is clear so they are not stopping you in the middle of it. By the time you notice the unit behind you, the reading is already done.
**2. Moving radar works while they are moving**
Modern units measure two things at once: how fast the patrol vehicle is going (from the road surface) and the relative speed between the two vehicles. The computer does the math and displays *your* speed. It works oncoming, same direction ahead of them, and — if they have a rear antenna, which many do — same direction behind them. Being behind the officer does not make you invisible.
**3. Motorcycles — the reading was already locked**
Both hands on the bars when you first see them does not mean they never took a reading. Handheld units get holstered after the lock. Frame-mounted units do not need a free hand. Lidar is a one- or two-second aim and lock. By the time you notice the motorcycle sitting there looking casual, the speed is already captured and the officer is just waiting for a safe place to move.
**4. What the ticket is really based on**
Officers are trained to estimate your speed by eye first, then confirm with the instrument and listen to the Doppler tone. The citation is usually “visual estimate confirmed by radar/lidar,” not “the machine said so and that is the whole case.” That is why “but I just left the light” or “I was behind him” rarely ends the conversation by itself.
None of this means every ticket is airtight. Calibration, tracking history, cosine angle, wrong target in a pack, and how the officer described the stop still matter. But the first step is knowing what the technology can actually do so you are not arguing a fact that is not a fact.
Got a ticket and the story does not add up? Call or text. We will look at the citation, the method they used, and whether there is a real defense — not just a story that sounds good in the car.
LV Traffic Ticket Guy
The Maridon Law Firm
(702) 970-4224
Getting a traffic ticket is a hassle, but The Maridon Law Firm, LLC can help. Our Las Vegas traffic ticket lawyers will help protect your driving record.